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75 Cards in this Set

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  • Back
The study of the relationships between living things and the environment is ___________.
Ecology
Members of the same species in an area make up a ______.
population
All the plants and animals living in an area make up a _________.
community
The place where a population lives is called its _________.
habitat
The role of an organism in the place where it lives is its _______.
niche
A relationship between two different kinds of organisms in which one or both parties profits is called _________.
symbiosis
Mutualism is a relationship between two organisms in which _______________ profit.
both species
In commensalism, one organism _______________ while the other organism is ____________________.
profits or benefits
neither helped nor harmed
In parasitism, one organism ________________ while the other organism ______________.
profits or benefits
harmed or hurt
Producers are organisms that
make their own food
Consumers are orgaisms that
must eat other organisms
Animals that feed on plants are called
herbivores
Animals that feet on other animals are called
carnivores
Animals that eat both plants and other animals are called
omnivores
A __________ animal eats a ______ animal.
preditor
prey
Decomposers feed on
the remains of dead plants and animals
In a food chain ______ is passed from one organism to another.
energy
A food web is formed of
over lapping food chains
A food pyramid shows the amount of _________ available at each link of a food chain.
energy
More food energy would be available for larger populations if people ate more ________ and less _______.
plants
meat or animals
An ecosystem is made up of organisms in a community that interact with ______________.
each other and their environment
Water continuously ________ from oceans, soil, and living things.
evaporates
When temperatures cool, water vapor _________ to liquid water.
condences
During photosynthesis, green plants take in ____________ and release ____________.
carbon dioxide
oxygen
During respiration, plants and animals take in ___________ and release ______________.
oxygen
carbon dioxide
The process in which nitrogen in the air combines with other elements is called
nitrogen fixation
Two ways which cause nitrogen to combine with other elements are
lighting and nitrogen-fixing bacteria
The action of _____________ returns nitrogen to the air.
denitrifying bacteria
the gradual changes in plant and animal communities in an ecosystem is called
ecological succession
In the first stage of a spruce-fir community acids produced by _______ help form _____________.
lichens
a layers of soil
The decay of dead _______ enriches the soil, allowing mosses to grow.
lichens
As animals and wind carry in seeds from grasses, a ______ forms.
meadow
Trees grow, providing homes for animals. The soil is soon enriched by __________
animal waste, fecies and remains of dead plants and animals
Give 3 examples of abiotic factors: ______, _______ & _______.
sun, wind, water, soil & rocks
Give 3 examples of biotic factors: ______, _______ & _______.
trees, deer, fish, butterfly, & duck
Abiotic factors are living or non-living?
non-living
Biotic factors are living or non-living?
living
List these terms in order from largest so smallest group: populations, ecosystem, community, & organism
ecosystem
community
population
organism
A relationship between two different kinds of organisms in which one or both species profit.
symbiosis
Organisms that cannot make their own food and that eat other organisms.
consumer
Meat eaters.
carnivores
A relationship where one organism benefits but harms the other organism.
parasitism
Overlapping of food chains in a community.
food web
The amount of energy available at each link of a food chain.
food pyramid
Consumers that eat both plants and animals.
omnivores
Organisms that feed on plants.
herbivores
Organisms that use the energy from the sun to make food.
producers
An animal that feeds on another animal.
predator
Shows how energy in food is passed from one organism to another.
food chain
One organism benefits from another organism who is neigher helped or harmed.
commensalism
A group of organisms of the same species living together in the same area.
population
The place where a population lives.
habitat
A relationship where two organisms benefit from each other.
mutualism
All the interacting populations that live together in the same place.
community
The role of an organism within its habitat.
niche
The animal that is eaten
prey
The biome that covers about 70% of the earth's surface.
saltwater biome
The biome located near the equator. It has NO seasons.
tropical rain forest
The biome where snow and ice cover the ground most of the time.
tundra
The biome where conifers grow.
taiga
This biome has four distinct seasons.
deciduous forest
This biome has broad-leaved trees such as palm trees, vines, ferns, and orchids.
tropical rain forest
This biome is where plants can store water in their stems; animals usually active at night.
desert
These biomes have short moderate summers; cold, snowy winters.
taiga & tundra
In this biome caribou migrate; many animals camouflaged with white fur or feathers.
tundra
This biome is located in northern latitudes and peaks of mountains about tree line.
tundra
This biome has many animals that live in trees for food and protection.
tropical rain forest
In this biome grazing animals have flat teeth.
grassland
In this biome the ocean is divided into several zones where different types of organisms live.
saltwater biome
In these biomes hoofed mammals have long legs for wading through deep snow; other animals have thick coats.
tundra & taiga
This biome has lakes, rivers, streams, and ponds.
freshwater biome
This biome has decay of grasses by bacteria forms a thick, fertile soil.
grassland
This biome has trees that lose leaves which reduces the water loss in a dry winter.
deciduous forest
This biome has plants that grown and decompose readily.
tropical rain forest
This biome has cacti, yuccas, snakes, lizards, and roadrunners.
desert