A food chain is a representation of a series of events in which food energy and matter are transferred from one organism to another. A food chain shows how living things get their energy. An example of a mixed food chain is: a seagull gets energy from a big fish, a big fish gets energy from a small fish, a small fish gets energy from a insect, a insect gets energy from a flower, and a flower is a producer. A food chain is made up of producers, consumers and decomposer's. A decomposer speeds up the process of decaying. It realises mineral salts back into the earth and it provides nutrients for plants. A food web is a diagram that consists of many overlapping food chains. Also it is a model that shows all possible feeding relationships with organisms living in a ecosystem. An example of a food web is: a human gets energy from a rabbit and carrots and a cow, a wolf gets energy from a cow and a rabbit,a rabbit gets energy from carrots and grass, a cow gets energy from grass, grass is a producer. Carrots are producers. A food web is more complicated than a food chain because its all food chains together. Most organisms depend on more than one species for food which makes the food web complicated. I think that food chain and food webs are very helpful and they help us learn how energy is pass on through out the ecosystem.
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