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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 concept is often associated with descriptions of food chains and food webs (Food Chains and Food Webs in an Ecosystem, Food Chain and Food Web Book Reviews).An ecological pyramid is an illustration of the reduction in energy as you move through each feeding (trophic) level in an ecosystem.he concept is often associated with descriptions of food chains and food webs (Food Chains and Food Webs in an Ecosystem, Food Chain and Food Web Book Reviews).