Food Chains and Food Webs

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What is a food chain?

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

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What is a food web?

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A food web is a complex network of interconnected food chains that shows how different organisms are related through feeding relationships.

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What is a producer?

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A producer is an organism that can make its own food, usually through photosynthesis, such as plants.

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What is a primary consumer?

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A primary consumer is an organism that eats producers; they are usually herbivores, like grasshoppers.

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers; they can be carnivores or omnivores, like frogs.

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What is a tertiary consumer?

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A tertiary consumer is an organism that eats secondary consumers; they are often top predators, like eagles.

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What is an apex predator?

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An apex predator is a predator at the top of a food chain that has no natural enemies, such as a hawk.

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What do the arrows in a food chain represent?

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The arrows in a food chain show the direction of energy flow from one organism to another.

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What is a herbivore?

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A herbivore is an animal that primarily eats plants, such as rabbits and grasshoppers.

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What is a carnivore?

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A carnivore is an animal that primarily eats other animals, such as snakes and hawks.