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There, change, largest amount, increase, run out of food

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food

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dead things

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Organism, Photosynthesis, Algae, protist, food web

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There are lots of fish, insects, plants and dead things in the pond food web. Each of these organisms has different roles. For example, algae is a protist that acts like a plant because it gets energy by photosynthesis and it stores the largest amount of energy. Catfish are consumers because it eat and obtains energy from amphipods and crayfish.

Populations in a food web can change. If pesticide enters this food web and kills all the pickerel population, then the bass population would increase because nothing eats it. It could go down after a while because it would run out of food.