Chapter 4 - Ecosystems

What is NOT a living thing in an ecosystem?

• plants

• animals

• insects

• water

What can cause changes in an enviornment?

• plants

• animals

• humans

• all of the above

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What are examples of nonrenewable resources?

• fossil fuels

• water

• oxygen

• plants

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What is NOT a type of fossil?

• mold

• extinct

• trace

• cast

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What do we call the timeline of the history of the earth?

• fossil fuel

• geography

• geographic time scale

• mold fossil

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A species that no longer exists

• Paleontologist

• population

• extinct

• competition

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All the living and nonliving things in an environment and the many ways they interact

• competition

• extinct

• population

• ecosystem

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This occurs when two or more living things need the same resources

• competition

• population

• renewable resources

• conservation

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Resources that can be replaced

• natural resources

• renewable resources

• nonrenewable resource

• resources

a resource that is not easily replaced

• natural resources

• renewable resource

• nonrenewable resource

• resources