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.
1. Each stage/level of the pyramid is called a " trophic level," or the highest position an organism typically occupies in a food chain. Each trophic level is shared by organisms that occupy the same position in a food chain. 2. As you go up the trophic pyramid, the total number of organisms (or biomass) at the next level decreases because much of the original energy captured from the sun during photosynthesis is lost at each level of the trophic pyramid (see explanation below). Consumers at the highest trophic level are called apex predators . 3. The trophic pyramid shows that some, but not all, the original food energy made by photosynthesizers is transferred from one trophic level to the next.
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