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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.
1 The transfer of energy for living things is called the food chain and transfers from producers to consumers. 2  This is a closed loop system. 3  Overlapping food chains are called a food web. 4  An energy pyramid shows how energy is used in the food web.5  This energy flow is an open loop. The sun is the source of energy on Earth. 2  The transfer of energy for living things is called the food chain and transfers from producers to consumers. 3  This is a closed loop system. 4  Overlapping food chains are called a food web. 5  An energy pyramid shows how energy is used in the food web.