Food Chain

We food chains use in ecological modeling.Food chains are from 3 or more levels.Food chanis are consisting from a plant and animals. A food chain differs from a food web, because the complex polyphagous network of feeding relations are aggregated into trophic species and the chain only follows linear monophagous pathways. A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web and the mean chain length of an entire web is the arithmetic average of the lengths of all chains in a food web.When rats eat a plnt , snakes rats,eagles snakes than we eat that eagle.
Plants et energy from SUN, e making sugous and it calls photosyntes.