![]() Organisms in food chains are grouped into categories called trophic levels. All of the interconnected and overlapping food chains in an ecosystem make up a food web. Each of these living things can be a part of multiple food chains. Foxes, in turn, can eat many types of animals and plants. Of course, many different animals eat grass, and rabbits can eat other plants besides grass. ![]() When the fox dies, bacteria break down its body, returning it to the soil where it provides nutrients for plants like grass. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem.įor example, grass produces its own food from sunlight. ![]() Every living thing-from one-celled algae to giant blue whales-needs food to survive. The food chain describes who eats whom in the wild.
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