Summary#2 Food Chains and Food Webs

Food chains and food webs are met food webs describe the successive transfer of energy from plants to the animals that eat them, and to the animals that eat those animals, and so on. A food chain is a model for this process which assumes that the transfer of energy within the community is relatively simple. A food chain in a grassland ecosystem, for example, might be: Insects eat grass, and mice eat insects, and fox eat mice. But such an outline is not exactly accurate, and many more species of plants and animals are actually involved in the transfer of energy. Rodents often feed on both plants and insects, and some animals, such as predatory birds, feed on several kinds of rodents. This more complex description of the way energy flows through an ecosystem is called a food web. Food webs can be thought of as interconnected or intersecting food chainshods of describing an ecosystem by describing how energy flows from one species to another.Food web is the overlapping food chains in a community.

[FOOD WEB]

[FOOD CHAIN]