CPES Ch 7 Test Review Saving Species & Ecosystem Services

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What is an endangered species?

Back

A species that has so few individual survivors that it could soon become extinct.

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What is a threatened species?

Back

A species that is likely to become endangered in the foreseeable future.

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What does pollination of crops represent in terms of ecosystem services?

Back

A valuable ecosystem or economic service.

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How many mass extinctions have occurred on Earth?

Back

Five.

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What is bioaccumulation?

Back

The accumulation of toxins in an organism's body over time.

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What is biomagnification?

Back

The increase in toxin concentration as you move up the food chain.

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What is the significance of biodiversity?

Back

Biodiversity is crucial for ecosystem stability, resilience, and providing ecosystem services.

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What are ecosystem services?

Back

Benefits provided by ecosystems to humans, including clean water, pollination, and climate regulation.

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What is overexploitation?

Back

The unsustainable use of natural resources, leading to depletion or extinction.

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What is the role of conservation biology?

Back

To study and protect biodiversity and ecosystems.