Detritivores and Decomposers Detritivores and decomposers make up the last part of food chains. Detritivores are organisms that eat nonliving plant and animal remains . For example, scavengers such as vultures eat dead animals. Dung beetles eat animal feces . Decomposers, like fungi and bacteria, complete the food chain. Decomposers turn organic wastes, such as decaying plants, into inorganic materials, such as nutrient-rich soil. They complete the cycle of life, returning nutrients to the soil or oceans for use by autotrophs. This starts a whole new series of food chains.
A food chain is a linear network of links in a food web starting from producer organisms (such as grass or trees which use radiation from the Sun to make their food) and ending at apex predator species (like grizzly bears or killer whales ), detritivores (like earthworms or woodlice ), or decomposer species (such as fungi or bacteria ). A food chain also shows how the organisms are related to each other by the food they eat. Each level of a food chain represents a different trophic level . A food chain differs from a food web because the complex network of different animals ' feeding relations are aggregated and the chain only follows a direct, linear pathway of one animal at a time . Natural interconnections between food chains make it a food web. A common metric used to quantify food web troph...
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