Living Things and Ecosystems

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What is an ecosystem?

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An ecosystem is all the living and nonliving things that interact in a specific area.

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Who studies ecosystems?

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Ecologists are scientists who study ecosystems and teach others about them.

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What are the four layers of a tropical rainforest from bottom to top?

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The order is: forest floor, understory, canopy, emergent layer.

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What role do fungi play in an ecosystem?

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Fungi break down dead tree matter, recycling nutrients back into the ecosystem.

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What is a producer?

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A producer is any organism that makes its own food.

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What is a consumer?

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A consumer is an organism that eats other organisms for energy.

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What is a herbivore?

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A herbivore is an animal that only eats plants.

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What is a carnivore?

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A carnivore is an animal that only eats other animals.

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What is a food chain?

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A food chain is a sequence that shows how energy and nutrients flow from one organism to another.

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What is a food web?

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A food web is a complex network of interconnected food chains in an ecosystem.