all organisms take up nutrients.
if they didnt eventualy release them the nutrients would run out
detritus feeders may start the process of decay by eating dead animas or plants and producing waste materials
decay organisms then break down the waste or dead plants and animals
bacteria and fungi are caled decomposers they decay faster if it is warm and wet
many decomposers need oxygen
humans can reyce waste in sewage treatment plants and compost heaps
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