Understanding Ecosystem Services and Biodiversity

What is an ecosystem?

• A place where only plants grow

• A system where organisms and nonliving things interact

• A type of weather pattern

• A collection of rocks and minerals

Why is biodiversity important in an ecosystem?

• It makes the ecosystem look more colorful

• It helps the ecosystem become stronger and less likely to break down

• It increases the temperature of the ecosystem

• It reduces the number of species in the ecosystem

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What is one of the services provided by healthy ecosystems to humans?

• Producing harmful chemicals

• Filtering water by removing harmful substances

• Increasing air pollution

• Destroying habitats

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What does the term "biodiversity" refer to in an ecosystem?

• The number of trees in a forest

• The variety of species present in the ecosystem

• The amount of sunlight the ecosystem receives

• The size of the ecosystem

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Which of the following is a sign of a healthy ecosystem?

• Low biodiversity

• High biodiversity

• No biodiversity

• Only one species present

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What role do wetlands play in ecosystems?

• They increase soil erosion

• They help filter water

• They prevent plant growth

• They reduce biodiversity

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How do ecosystems help in nutrient movement?

• By storing nutrients permanently

• By moving nutrients to places where they are needed

• By destroying nutrients

• By converting nutrients into waste

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What happens when an ecosystem is not balanced?

• It becomes more efficient

• It is less likely to break down

• It may break down more easily

• It increases biodiversity

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Which of the following is NOT a benefit provided by ecosystems?

• Providing food for humans

• Cleaning air and water

• Increasing pollution

• Supporting biodiversity

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What is the relationship between biodiversity and ecosystem strength?

• More biodiversity weakens the ecosystem

• Less biodiversity strengthens the ecosystem

• More biodiversity strengthens the ecosystem

• Biodiversity has no effect on ecosystem strength

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