Food chain food web and food pyramid?

Food Chain: Natural chain of consumption in nature. Example: Plankton, Small Fish, Big fish, Whale, Eskimo with harpoon.

Food Pyramid: Man-Made (FDA/Department of Agriculture). This is an index of what food categories, and in what amounts, the government believes you should eat to achieve a balanced diet.

Food Web: Elements of various foods within an ecosystem microcosm. The food web in Alaska (Bear eats Salmon) is different than the food web in Africa (Lion eats Zebra, eats Grass).