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A food chain is a sequence that demonstrates how one organism forms the food for another. It begins with the simplest animals and plants, and continues until the top of the chain is reached. Humans or predator animals are often at the top of food chains.
Plants such as grass and trees are towards the bottom of the food chain.
Grazing animals browse on these plants, and these animals are in turn eaten by predators such as lions.
Their dung fertilizes the soil, encouraging the growth of
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Tags: food,
animals
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