Ecosystems Review

An environment that provides the things a specific organism needs to live, grow, and reproduce.

• ecosystem

• community

• neighborhood

• habitat

An organism that can make its own food is called a

• consumer.

• scavenger.

• producer.

• decomposer.

The many overlapping food chains in an ecosystem make up a(n)

• energy pyramid.

• niche.

• feeding level.

• food web.

Fossil fuels are considered nonrenewable resources because they

• A. take hundreds of millions of years to form

• B. burn so quickly

• C. are in such high demand

• D. pollute the air

Water vapor turns into droplets of liquid water in the process of

• collection

• evaporation

• precipitation

• condensation

Tags

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A diagram called a(n) shows how much energy is available at each level of a food web.

• energy pyramid
• food web

• food chain

• carbon cycle

Tags

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If a coyote eats a mouse that eats grass, the coyote is a

• decomposer

• producer

• second-level consumer

• first-level consumer

Tags

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According to the graph, during which year did the limiting factors in this environment most affect the rabbit population?

• Year 1

• Year 2

• Year 3

• Year 4

Tags

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Producers use carbon from the gas _____ to make sugars and starches.

• oxygen

• nitrogen

• carbon dioxide

Tags

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All the different populations that live together in an area.

• species

• organism

• population

• community

Tags

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