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Answers. 1  A food chain is the what animal eats what animal. It really should be called a food web because many animals eat many other animals. The food web is a representation of an energy pyramid. An energy pyramid just shows where the energy is going. The sun is at the bottom, then plants and so on. There really are not many differences between them.
The continuous process by which water moves from Earth's surface to the atmosphere and back. Using food chains, food webs, and energy pyramids, explain how energy flows through an ecosystem. The energy needed by all organisms to survive ultimately comes from the Sun. Within food webs, plants capture the Sun's energy. As organisms eat other organisms, that energy transfers within food websfrom plants (producers) to animals (consumers) and decomposers.