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26 Cards in this Set

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__________ are usually shallow and filled with an abundance of plant and animal life.

a. Rivers
b. Ponds
c. Oceans
d. Lakes
b. Ponds

Ponds are freshwater ecosystems that are small, shallow bodies of water.
Think about which aquatic ecosystems are not deep bodies of water.
Which of the following animals can be found in a wetlands environment?

a. beaver
b. lemming
c. bear
d. salamander
a. beaver

Beavers, muskrats, and migratory birds are all animals that may be found in a wetlands.
Which biome typically has four distinct seasons?

a. temperate rain forest
b. desert
c. tundra
d. temperate deciduous forest
d. temperate deciduous forest

The temperate deciduous forest receives a range of 75 cm to 150 cm of rainfall every year. It has four distinct seasons.
Which biome would the kangaroos of Australia be found in?

a. temperate deciduous
forest
b. desert
c. grasslands
d. tropical rain forest
c. grasslands

The kangaroos of Australia live in a grasslands biome, where they graze on grassy plants.
Which of these biomes receives little annual precipitation?

a. grasslands
b. tundra
c. temperate deciduous forest
d. taiga
b. tundra

Tundra biomes typically receive less than 25 cm of precipitation every year.
In which aquatic ecosystem would you find ocean fish being raised for food for humans?

a. a coral reef
b. a wetlands
c. an intertidal zone
d. an estuary
d. an estuary

Estuaries are an ecosystem where species of seafood such as crabs, oysters, and clams are found.
Which of these factors helps determine the climate of a region?

a. the amount of precipitation
b. the impact of sucession
c. the number of plant species
d. the amount of erosion
a. the amount of precipitation

The average amount of precipitation a region gets in a year is a factor in determining its climate.
Climate deals with weather conditions over a period of time.
Which of these aquatic ecosystems has the highest salinity?

a. stream
b. river
c. coral reef
d. estuary
c. coral reef

Coral reefs are saltwater ecosystems that have greater salinity than estuaries.
After a house is torn down, the land it stood on begins to have grass and weeds grow from the soil. What is this an example of?

a. climax communities
b. primary succession
c. pioneer species
d. secondary succession
d. secondary succession

Secondary succession happens in a place where there had been living organisms.
Which one of these is true of the tropical rain forest biome?

a. The soil is thin and gravelly.
b. The soil contains permafrost.
c. The soil thaws during the summer.
d. The soil contains little dead vegetation.
d. The soil contains little dead vegetation.

In the tropical rain forest, dead leaves and vegetation is quickly eaten by organisms that live there. The soil gets little of this vegetation added to its composition.
Which of these biomes receives the least amount of rainfall every year?

a. temperate deciduous forest
b. taiga
c. tropical rain forest
d. desert
d. desert

Desert regions usually receive less than 25 cm of rain in a year.
Which plant is typically found in grasslands?

a. corn
b. cactus
c. rice
d. moss
a. corn

Corn, wheat, and oats are examples of crops grown in grasslands.
The gradual changes that happen in the types of species living in a region are called __________.

a. balance
b. succession
c. community
d. permafrost
b. succession

Primary succession and secondary succession are part of ecological change.
Because ponds tend to be filled with plant material, these bodies of water are usually high in __________.

a. nutrients
b. permafrost
c. acidity
d. salinity
a. nutrients

Since ponds tend to have many plants growing in them, they are usually filled with nutrients to support many different organisms.
Ponds tend to be shallow bodies of water, so sunlight can usually reach the bottom.
Which of these biomes is considered the most biologically diverse?

a. temperate deciduous forest
b. grasslands
c. desert
d. tropical rain forest
d. tropical rain forest

One reason tropical rain forests are biologically diverse is because of the unique zones that exist within the biome.
Taigas and grasslands are examples of __________.

a. biomes
b. estuaries
c. canopies
d. succession
a. biomes

Taigas and grasslands are two of the seven biomes found on Earth.
Which of these animals might be found living in a taiga?

a. moose
b. spotted owl
c. kangaroo rat
d. zebra
a. moose

Moose are one species of animal that can be found in a taiga biome.
Few plants grow under the dense forests of the taiga.
The region below about 200 m in an open ocean is called the __________.

a. canopy
b. dark zone
c. steppes
d. understory
b. dark zone

The dark zone of the ocean is a unique ecosystem because little sunlight penetrates this depth.
The understory is part of a tropical rain forest.
In many desert regions, water is diverted from streams and rivers to provide it to people in cities. How does this impact the animals in the area?

a. The animals become more active during daylight hours.
b. The animals move closer to cities to search for food and water.
c. The animals migrate to tropical rain forests.
d. The animals stop searching for water.
b. The animals move closer to cities to search for food and water.

Because of the human impact on desert regions, animals are likely to move to areas where people live in order to find food and water.
The body of water where a river and an ocean meet is called __________.

a. a pond
b. a wetlands
c. an estuary
d. an understory
c. an estuary

The salinity in an estuary changes depending on the amounts of freshwater and salt water feeding it.
__________ describes the weather patterns that affect a region over a long period of time.

a. Succession
b. Community
c. Climate
d. Weather
c. Climate

Temperature and rainfall are factors that describe a region's climate.
What is the term that describes weather conditions that occur over a long period of time?
When is the intertidal zone covered with water?

a. at high tide
b. during daylight hours
c. at low tide
d. during nighttime hours
a. at high tide

The intertidal zone is covered with water at high tide and exposed to the air and direct sunlight at low tide.
Think about where the intertidal zone of a coastline ecosystem is.
About what percentage of water on Earth's surface contains high concentrations of salt?

a. 35%
b. 65%
c. 95%
d. 15%
c. 95%

While about 70 percent of Earth is covered with water, about 95 percent of this water has high concentrations of salt.
How much water on Earth's surface is freshwater, and how much is salt water?
Taigas and grasslands are examples of __________.

a. biomes
b. estuaries
c. canopies
d. succession
a. biomes

Taigas and grasslands are two of the seven biomes found on Earth.
Regions with climates and ecosystems that are similar can be grouped together.
Which of these is NOT a freshwater ecosystem?

a. reef
b. pond
c. wetlands
d. river
a. reef

Reefs are found in salt water.
Think about each ecosystem and its salinity.
Primary succession begins in an area without __________.

a. sunlight
b. air
c. soil
d. wind
c. soil

Primary succession occurs in a place that has no soil, and begins when living things arrive at that location.
Succession involves changes in species.