Food web and Food Chains

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What is a food chain?

Back

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?

Back

A food web is a complex network of interconnected food chains in an ecosystem, showing how different organisms are related through feeding relationships.

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What is a producer?

Back

A producer is an organism that can make its own food, usually through photosynthesis, like 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 mice.

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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 snakes.

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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 owls.

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What role do decomposers play in an ecosystem?

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Decomposers break down dead organic matter, returning nutrients to the soil and helping to recycle energy in the ecosystem.

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What is an example of a decomposer?

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Worms are an example of decomposers that help break down dead plants and animals.

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What does the arrow in a food chain represent?

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The arrow in a food chain points to what eats the organism before it.

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What is an example of a producer in a food chain?

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Grass is an example of a producer that provides energy for primary consumers.