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235 Cards in this Set
- Front
- Back
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What is a system? |
a group of parts that work together as a unit
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What are the living parts of a yard? |
people, plants, and animals
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? How does a person interact with a faucet? |
He or she turns it on and off.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What are inputs to a yard system? |
energy from the sun and water from rain or from the city's water supply
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What two features do open systems have? |
take in inputs from outside the system; give off outputs that leave the system
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? Is evaporated water an input or an output in the yard system? |
an output
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? |
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? |
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? Why are most systems open? |
Most systems have connections to the outside and can't exist without inputs and outputs.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What patterns of change occur in a yard? |
There are periods of sunshine and shade; the yard becomes wet and then dries.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What is a characteristic of almost all natural systems? |
They stay in balance, or have stability.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? How do changes in the yard over the seasons result in stability? |
They form a pattern that is repeated every year.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What pattern of change does grass go through as it is cared for each summer? |
A person cuts it, and it grows again.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What is stability? |
a condition in which changes in a system cancel each other out and the system remains in balance
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? Describe two ways in which the part of a yard system interact. |
The plants in the yard absorb water that falls as rain. As the palnts make food, they give off oxygen that is breathed by animals living in the yard. Some animals eat the plants.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? How are inputs and outputs of a system alike? |
Both involve things outside the system.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? What patterns show that a yard system is stable? |
daily periods of sunshine and shade, cycles of water, regular mowing
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? How do areas of sunshine follow a pattern in a yard that has trees? |
Parts of the yard may receive sunshine for only certain hours of the day. The rest of the day the trees could block the sun, leaving those parts of the yard in shade. The yard ges no energy from sunshine at night. The next day the same conditions are repeated.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 1: What Are Systems? A system that is in balance is said to have ---. |
stability
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? What must a plant or animal be able to do to live in a certain ecosystem? |
be able to meet its basic needs
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? Why do environments differ in the number of things that live there? |
The amounts of space, food, and shelter differ in different environments.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? How are some organisms able to survive in harsh environments? |
They develop unusual adaptations.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? How do scientists usually name land ecosystems? |
by the main population of plants that live there
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? How is the mangrove tree different from most other trees? |
It has an adaptation that allows it to grow in salt water and in fresh water.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? What is a population? |
a group of the same species living in the same place at the same time
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? In what ways do animals need plants? |
Some animals eat plants.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? How do plants depend on animals for survival? |
They depend on animals to carry away seed and to add nutrients to the soil.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? What is a community? |
is made up of all the populations that live in the same area.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? In what ways are the living things in a community important to one another? |
The plants and animals of a community depend on each other to survive.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? How does the structure of a mangrove seed help it survive and grow? |
It is shaped like a spear, which enables it to fall directly into soil. Its size allows it to store plenty of nutrients and, if necessary, to float to a new place to grow.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? What are the main nonliving parts of a typical ecosystem? |
sunlight, soil, air, water, and temperature
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? What is an example that shows that nonliving parts interact? |
water can move soil from place to place
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? How does salt, a nonliving part of the ecosystem affect the mangrove swamp ecosystem? |
Only plants that have adapted to a salty environment can live there, so salt limits the kinds of plants that grow in the swamp.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? Why do some ecosystems include many living things? |
They have plenty of food, shelter, and space.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? Is a row of bean plants in a garden a population or a community? Explain. |
Population - the plants are a group of the same species.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? What nonliving part of the mangrove swamp limits the kinds of plants that can live there? |
salt or salt water
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 2: What Makes Up an Ecosystem? Contrast a population with a community. |
A population is made up of one kind of living thing. A community is made up of many different kinds of living things.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What is a habitat? |
an environment that meets the needs of an organism
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? When might living things have to compete? |
when they share a habitat and meet their needs in similar ways
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? For what do similar organisms compete? |
food and space
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What does an organism's niche include? |
all the ways it meets its needs, for example, how it gets shelter, how it produces young, and how it gets food and water
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What is a food chain? |
a description of one way energy moves through an ecosystem
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What is a niche? |
another name for role
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What is a producers? |
green plants and some protists and monerans
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What are decomposers? |
feed on wastes of plants and animals or on their remains after they die
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What are the three levels of every food chain? |
producers, consumers,and decomposers
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? Why is a diagram of energy levels in an ecosystem in the shape of a pyramid? |
because only about 10 percent of the food energy is availabe to the next level of the food chain
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? Which part of an energy pyramid represents producers? |
the base level
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? About how much energy of each level is passed on tothe organisms in the next level? |
about 10 percent
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What is a energy pyramid? |
shows how much food energy is passed from one organism to another along a food chain.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What does a food web show? |
how food chains connect and overlap
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? |
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? In what way does a bird eating insects help stabilze the shared habitat? |
The bird helps keep the insect population from becoming too large.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What can result if too many birds in a habitat are eating insects? |
The insect population can become too small to support the bird population, so many birds will leave the area or possibly die.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What can happen if too many insect-eating birds live in a habitat? |
The birds can eat too many insects, reducing the insect population until there is not enough to eat.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What happens when two similar animals share a habaitat? |
If the animals meet their needs in similar ways, they will have to compete for food and shelter.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What type of organism breaks down the remains of dead plants and animals? |
decomposers
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? How can one organism help control the population of another organism? |
by eating it
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 3: What are Habitats and Niches? What could happen to an ecosystem that had mice if cats were added to it? |
The mouse population would likely be reduced.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? Define: climate |
average weather over a long time
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What is the climate of a tropical rain forest? |
a lot of rainfall and high temperatures all year
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? Why do many plants and animals live in the canopy of the rain-forest trees? |
There they can use the sunlight and open space
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What covers much of the rain-forest floor? |
rotting plant material
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? How does the number of species in rain forests compare with the number of species in other ecosystems? |
Rain forests have more species than any other ecosystem.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What makes a tropical rain forest different from any other ecosystem? |
more species of plants and animals than any other ecosystem on Earth
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? Where are tropical rain forests located? |
near the equator
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What is the range of daily temperature near the equator? |
68 to 93 degrees
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What are some of the organisms found in a rain forest? |
morpho, butterflies, orchids, tiger centipedes, toucans, eagles, turtles
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What is diversity? |
variety
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What conditions in the sea water where coral reefs grow are constant? |
The water is clean and warm all year. The amount of salt in the water is constant.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? Where do coral polps get the calcium they need to build the limestone skeletons around their bodies? |
from sea water
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What is salinity? |
amount of salt in it
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? How does a coral polyp build its skeleton? |
It makes limestone by taking calcium out of sea water.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What resources are found in rain forests? |
wood, fruits, nuts, and spices; raw materials for furniture, cooking oils, waxes, dyes, and medicines
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? How are tropical rain forests and coral reefs alike? |
located near the equator; home to thousands of unique species of living thnigs; provide people with resources
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What percent of all the world's plant and animal species are found in tropical rain forests? |
50 - 70 percent
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What percent of all the world's species of fish are found in coral reefs? |
30 percent
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? What could happen to these species if changes in these ecosystems made their climates less constant? |
Many species could die. If found nowhere else on Earth, they could disappear completely.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? 1. Where do most plants and animals live in a tropical rain forest? |
in the canopy, or tops of trees
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? Why is the salinity of salt water important for a living coral reef? |
wood; foods such as fruits, nuts, and spices; and raw materials to make furniture, cooking oils, waxes, dyes, and medicines
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? Why is it important to protect tropical rain forests and coral reefs? |
Both are home to thousands of species of plants and animals, some of wheich are found no place else on Earth. Some of these species may one day provide valuable resources to people.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 4: What Are Tropical Rain Forests and Coral Reefs? The floor of a tropical rain forest is covered with ---. |
dead plant material
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What is an intertidal zone? |
a narrow strip along the shore that is covered with water during high tides and exposed during low tides
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What is a near-shore zone? |
starts at the low-tide mark and goes out into the ocean. The water is shallow here, so light can shine though the water all the way to the bottom
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What is an open-ocean zone? |
The deepest part of the ocean. Sunlight cannot reach the bottom, so very few organism are found deep under water
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What are the main factors that determine where ach of the life zones are? |
water depth and availability of light
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Where are the three life zones in the ocean? |
intertidal zone, near-shore zone, open-ocean zone
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What are the boundaries of the intertidal zone? |
high- and low- tide marks
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How is the near-shore aone different from the open-ocean zone? |
The water in the near-shore zone is much shallower, so the availability of light supports many more living things.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? For what environemntal conditions must salt marsh organisms have adaptations? |
wet and dry periods; changing water salinity
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How are animals adapted for the rising and falling of the tides? |
Some have hard shells, and some bury themselves in the sand when the tide is out.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Where do kelp forests grow? |
in the near-shore zone in cold, shallow water along rocky coastlines
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What are the main plantlike organisms living in kelp forests, and what are the main plants living in forests on land? |
Kelp are the main plantlike organisms living in kelp forests, and trees are the main plants living in forests on land.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How are kelp held upright? How are trees held upright? |
Kelp are held up by gas bladders that keep the streamers afloat. Trees are held up by strong trucks and roots.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How do animals use kelp, and how do animals use trees in a forest? |
Animals in both communicaties use the organisms for food and shelter.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How are the layers in a kelp forest and the layers in a land forest similar? |
Both have a bottom layer where bottom dwellers live, a middle layer where other animals live, and a top layer.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Where do kep forests grow? |
in the near-shore zone, in cold, shallow water along rocky coastlines
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Why do kelp forests only grow in near-shore zones, in cold, shallow water along rocky coastlines? |
Shallow water allows the kelp to get enough sunshine to grow, and the rocky bottom proves a place for the holdfasts to be anchored.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How are the kelp plants kept upright? |
They has gas bladders at each leaft to keep the plant floating.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How are kelp forests like forests on land? |
They both have tall plants that provide different layers in which different animals live.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Why aren't plantlike organisms found thoroughout the open-ocean zone? |
It's too dark deep underwater.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Why aren't larger plantlike organisms, such as kelp, the basis for food chains in the open ocean? |
These organisms grow up from the bottom of the ocean, and light cannot reach this deep in the open ocean.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What do food chains on land ultimately depend on? |
green plants that can capture the sun's energy
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What do food chains near hydrothermal vents depend on? |
bacteria that can use sulfides spewing out of hydrothermal vents for energy
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Where are deep-sea hydrothermal vents located? |
near mid-ocean ridges
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Why are these vents located there? |
These are the sites where there is volcanic activity, which produces the sulfide-laden water that forms the basis of the communities' food chains.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How do the food chains that exist around the deep-sea hydrothermal vents differ from food chains found anywhere else on Earth? |
They do not get energy form sunlight.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? How are the plants that live in a salt marsh different from other plants? |
They are adapted to living in salt water. They have tough, narrow leaves and glands tht excrete excess salt.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What is at the base of a food chain at the deep-sea hydrothermal vents? |
large colonies of bacteria that can use sulfides spewing out of hydrothermal vents for energy
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? What is at the base of a food chain in the open ocean? |
microscopic plantlike organisms floating near the surface of the water
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Lesson 5: What are Some Saltwater Communites? Give an example of a saltwater community in the interitidal zone. |
a salt marsh
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review All the populations that live in the same place make up a --. |
community
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review An organism's role in its ---, or home, is called its ---. |
habitat, niche
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review A group of parts that work as a unit is called a ---. |
system
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review The three levels that are part of any food chain are ---, ----, and ---. |
producers, consumers, and decomposers
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Coral reefs are affected by the ---, or saltiness, of ocean water. |
salinity
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review --- is reached when the changes in a system are balanced. |
stability
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review A --- shows how several food chains connect and overlap. |
food web
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Populations and the environment in which they interact form an ---. |
ecosystem
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review All the coral polyps living in a reef form a --- of polyps. |
population
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Rain forests and coral reefs are important because they hve great variety, or ---, of living things. |
diversity
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review An --- is a diagram that shows the amount of energy passed from one organism to another along a food chain. |
energy pyramid
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review --- is the average weater over a long time. |
Climate
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review From deepest to shallowest, the three ocean zones are ----, ----, and ----. |
open-ocean, near-shore, intertidal
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review --- are groups of living things and their environment make up. |
ecosystems
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Different kinds of living things form a ---. |
community
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Living things of the same kind form a ---. |
population
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review ---, ---, and ---- interact within food chains and food webs. |
producers, consumers, decomposers
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review For an insect, the space under a rock is likely its --. |
habitat
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review A rain forest and all the organisms that live there are ---. |
an ecosystem
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Robins, earthworms, and grass live in a yard. These three groups make up a ---. |
community
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Explain how rain and water that runs off help maintain the stabilty of a yard. |
Rain provides the water that plants and animals need to live. The runoff water keeps the yard from being flooded or too wet.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review In a meadow ecosystem, rabbits eat only plants. They eat plants faster than the plants can grow back. What must happen to bring the ecosystem into balance? |
The rabbits would compete for the plants. This would force some rabbits to other areas to eat or cause some to starve. Once the number of rabbits is reduced, the ecosystem will be more in balance.
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Unit B: Looking at Ecosystems
Chapter 1: Ecosystems Review Suppose you put all your favorite plans in a terraruim. You include a cactus, a violet, and a grass plant. Predict what will happen. Explain your answer. |
Not all the plants will survive in the terrarium because each plant comes from a differnt ecosystem. Depending on the amount of water given and the type of soil used, only one plant will grow well. For examples, if you use sandy soil nad little water, both the violet and the grass probably will die.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What does succession mean? |
the process by which one community is replaced by another until a stable community occupies the area
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How did ponds form after the ice ages? |
Ice melted and the water filled the holes made by glaciers.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? Why were plants unable to live in the ponds at first? |
The ponds had so soil.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How did soil begin to form in the ponds? |
Mosses and lichens growing near the ponds broke down rock, and the pieces washed into the ponds.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What allows more and more organisms to live in an ecosystem? |
Added nutrients allow an ecosystem to support more living things.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What changes can result from a hurricane? |
Wind can flatten homes and destroy trees and other plants. Rain and waves can flood areas.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How do thunderstorms speed erosion? |
runoff from heavy rainfall
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What is the most destructive aspect of tornatdoes? |
the wind
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What are some causes of forest fires? |
lightning and careless people
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How are aniamls affected by forest fires? |
They must leave until the fores begins to grow back. Some may be killed.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How are hurricanes and tornadoes alike? |
They both have powerful winds.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What relationship do thunderstorms have to tornadoes? |
Thurnderstorms can produce tornadoes.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What kind of storm can cause a forest fire? |
thunderstorms
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What can cause rapid changes in an ecosystem? |
severe storms, such as hurricanes, thunderstorms, and tornadoes, fires; and volcanoes
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? When do hurricanes usually begin to weaken? |
when they move over land
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What areas are often flooded from runoff of heavy rainfall? |
low areas
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How do some plants actually benefit from fires? |
Young plants get more sunlight; some pine cones release seeds only after being exposed to heat from a fire.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How can a volcano affect areas that are far away from the volcano? |
Explosions can form clouds of ash that can travel hundreds of kilometers fromthe volcano.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How are areas near a volcno most affected? |
The explosion, ash, and lava can be destructive to the area.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What are among the first plants to grow in hardened land? |
mosses, gasses, and small flowers
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What must occur before larger plants can begin to grow after a volcano eruption? |
The lava must be broken up by weathering.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How are many forest fires spotted? |
by lookouts who watch for fires
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What must people in the path of fires or hurricanes often do? |
evacuate, or leave the area
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How are hurricanes tracked? |
by weather satellites, weather balloons, and planes
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? By what means are warnings given for threatening weather? |
radio and TV announcements, and sirens
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What can people do to protect themselves from sudden severe weather? |
take shelter
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? Why do people who live near a volcano feel they have time to escape an eruption? |
They depend of early warnings.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? Why would a brush fire spread quickly? |
Brush a lightweight and dry and catches fire easily. It can also be blown around by the wind.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How do people try to protect themseles from the foreces tht cause rapid ecosystem changes? |
People set up tracking and warning systems to try to keep everyone safe during fires and storms.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How does a pond change over time to a forest? |
As the pond fills up, the community of livng things in and around the pond changes from the of a pond, to a marsh, to a forest.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? What is one cause of rapid ecosystem changes that can result from peoples' actions? |
Forest fires caused by people can cause rapid ecosystem changes.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? How do people try to stay safe during rapid changes in ecosystems? |
People set up tracking and warning systems to alert them of danger and to enable them to find safe places during fires, storms, and volcanic eruptions.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 1: What kinds of Changes Occur in Ecosystems? Why might an ecosystem that is damaged by fire be able to recover fairly quickly? |
There is less competition for space and food; some organisms may have lived through the fire; nutrients released by the burning of trees can support new life.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What are three ways people use chemicals to meet their needs? |
some ways include: to build and manufacture things, to kill insects, and to fertilize crops
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How do chemicals harm ecosystems that are exposed to them? |
They can end up in ponds, rivers, and lakes and harm the fish and plants.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How have tropical rain forests been affected by people's need for lumber and space? |
Half of the tropical rain forests have been used up
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How can the loss of the rain forests affect other ecosystems? |
The oxygen relased by trees in the rain forest provides oxygen for living things in allthe world's ecosystems. Also, the soil that erodes from clear-cut rain forests washes into rivers and oceans, sometimes setting on coral reefs and killing them.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? Why are the trees of the rain forests being cut down? |
People are building roads, homes and factories on the cleared land.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? When do scientists think the rain forests will disappear if cutting rain-forest trees continues at the present rate? |
by the year 2030
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How has technology affected the way people change the land? |
Machines like bulldozers allow people to clear land much more easily and effectively. Technology has enabled people to clear land at a faster rate than in the past.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What is one way dams can harm a fiver's fish? |
The dam can keep fish, like salmon, from swimming upstream to lay their eggs.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What is being done to help the salmon? |
Fish ladders are being built to enable salmon to go around the dams.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How are people repairing areas damaged by strip mining? |
They are filling the pits made by strip mining with the soil that was taken out. Then they are planting grass, trees, and flowers in the soil to control erosion.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? In some areas dams have been torn down. How would this change rivers? |
It would make them more like their natural state.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How are fish ladders like a natural river? |
They are similar to the rapids of a river.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How do fish ladders let salmon get oer a dam? |
They have steps that are built so salmon can easily jump from one level to another.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How does replanting trees help provide for people's future needs? |
When the trees are grown, they can be used for lumber and making paper.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What problems can mining cause? |
erosion, mudslides, chemical pollution, and loss of habitat
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? Waht action was taken by the mining company that shows it plannned to practice reclamation? |
It set aside the top layers of soil.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How will the soil be used to reclaim the mined area? |
It will be used to fill in the pit.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? Why do mining companies plant trees, flowers, and grass? |
to prevent erosion (and to make the area more attractive)
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? Why does it take a long time before an area returns to the way it was before it was mined? |
It must go through the process of succession, in which new species enter and are eventuaally replaced.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How do individuals lmake new habitats for living things? |
They set up wildflower gardens and ponds in their yards.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What similar thing do governments do? |
They make parks and allow oil rigs that are no longer used to be sunk to make reefs.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What kinds of laws are passed to protect land and the organisms that lie on it? |
laws to stop logging and building in certain areas, laws to make corridors in which animals can safely pass from one rgion to another, and laws to prevent harvesting coral
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How can people help make habitats for wildlife in their neighborhoods? |
build ponds, plant gardens and trees
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How can chemicals used by farms and factories poison nearby waterways? |
The chemicals can mix with runoff water and get into streams and rivers.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? What are two ways people try to repair ecosystems? |
People put back soil after a strip mine has been closed; they plant trees after cutting down forests; they provide structures on which coral reefs can grow.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? How do people reuse land that once had railroad tracks on it? |
People turn it into hiking and biking trails.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? If all the rain forests were cut down, how would that affect people? |
Rain forests provide Earth's atmosphere with oxygen and help recycle water. Cutting down the rain forests deduces these resources, making it more difficult for people to meet their needs.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 2: How Do People Change Ecosystem? About how much of Earth's rain forests have already been destroyed? |
one-half
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What is conservation? |
careful management and wise use of these natural resources
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What are some examples of ways to use less packaging? |
choose one large carton of juice, rather than many small ones; choose an unwrapped bottle instead of one in a box or wrapped in plastic
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What are some examples of materials that can be recycled? |
paper, glass, aluminum, and plastic
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? How can items such as shopping bags be reused? |
example: by lining trash cans or by shopping with them again
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What can be made with used aluminum cans? |
new cans
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? Where have you seen this symbol before? |
on plastic containers, cans, and glass items
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? Why is it important to recycle glass and aluminum? |
Recycling glass and aluminum saves large amounts of energy and saves space in landfills.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? People have known for years about how recycling helps conserve natural resources. In what ways does recycling also help conserve energy? |
Less energy is needed to make products from other recycled products than from raw materials.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What is a benefit of using recycled aluminum to make other aluminum products? |
Recycling aluminum takes about 75 percent less energy than does producing it from bauxite.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What is packaging? |
the cardboard, paper and plastic boxes, wrappers, and bottles that protect products but aslo make up most of the trash thrown away in the United States
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? Why have many packages in the United States been redesigned? |
to reduce the materials needed to make packages and the space these materials eventually take in landfills.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What are other benefits of redesigning packaging? |
Using less packaging material lowers the cost, which could result in savings for consumers.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? In what ways have cars been redesigned to use less fuel? |
Cars have been made lighter through the use of building materials such as aluminum, plastic, carbon fiber, and titanium.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What does it mean to redesign a product to be more environmental friendly? |
changing the packaging or makeup of a product so that it takes few resources to make
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What are two ways that consumer goods can be redesigned to save energy? |
Reduce packaging or change a product's makeup.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? How do governments help preserve ecosystems? |
by making laws and setting up protected areas
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? How many national parks are in the United States? |
54 national parks
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What agency watches the effects people have on ecosystems? |
Environmental Protection Agency
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? Why do you think this mountain was included in Yosemite National Park? |
It is an unusual landscape.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? How does preservation help an ecosystem? |
An area is set aside and cannot be used for other purposes.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What is preservation? |
protection of an area
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What are three ways you can use less water? |
Turn the tap off while brushing teeth or washing hands; use short cycle on the dishwasher or clothes washer; and take shorter showers.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? What are three materials that can be recycled? |
examples include: paper, glass, aluminum or plastic
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? How has government helped protect the environment? |
The government has set aside areas to protect endangered species and unusual landscapes, it has made laws to protect the environment, and it has established agencies to enforce the laws.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? How does using a shoe box to store letters and pictures help protect the environment? |
Resusing the shoe box helps keep trash out of landfills and reduces the need for another box made from natural resources
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Lesson 3: What is Conservation? Protecting an area by making it a park is a form of ---. |
preservation
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review The United States government helped in the --- of ecosystems by setting aside national parks. |
preservation
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review When the community in an ecosytem changes over time, the process is known as ---. |
succession
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review The --- of a strip mine can make a new habitat for wildlife. |
reclamation
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review When people use resources wisely, they are practicing ---. |
conservation
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review --- conserves resources by using less material to make or package an item. |
Redesign
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review What are the stages of pond succession? |
pond, march, meadow, forest
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review Understand the chart about pond succession on page B78 |
.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review If a hurricane were to destroy the habitat for plants along the coast, new plants would grow. This process is called ---. |
succession
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review As plants and animals die in a marsh, their remains add to the marsh's ----. |
nutrients
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review A new aluminum can made from used cans is an example of ---. |
recycling
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review Where would you probably find a lake that is protected by law from any fishing? |
a national park
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review A new bottle that requires less plastic to make is an example of ----. |
redesign
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review Why do you think government help protect the environment? |
examples include: that governments recognize the value of the unusual or beautiful natural features of an area for all people. The government can keep the land for the benefit of all rather than just a few people.
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Unit B: Looking at Ecosystems
Ch. 2 Protecting Ecosystems Review A strip mine from which all the minerals have been removed cannot be returned to its natural state. Instead, the land is reshaped for differnt uses. A pond, trees, and pathways are added. How could people use this reclaimed area? |
examples include: make a recreation area or campground, establishing a protected area for wildlife, establishing a park, or building housing
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