Decomposers are organisms that break down dead or decaying organisms, and in doing so, carry out the natural process of decomposition. Like herbivores and predators, decomposers are heterotrophic, meaning that they use organic substrates to get their energy, carbon and nutrients for growth and development.
https://en.wikipedia.org/wiki/Decomposer
Best Answer: When a plant or animal dies, it leaves behind nutrients and energy in the organic material that comprised its body. Scavengers and detritivores can feed on the carcasses, but they will inevitably leave behind a considerable amount of unused energy and nutrients.
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While bacteria are restricted to growing and feeding on the exposed surfaces of organic matter, fungi can use their hyphae to penetrate larger pieces of organic matter. Additionally, only wood-decay fungi have evolved the enzymes necessary to decompose lignin, a chemically complex substance found in wood.
https://en.wikipedia.org/wiki/Decomposer
Fungi decompose organic matter by releasing enzymes to break down the decaying material, after which they absorb the nutrients in the decaying material. Hyphae used to break down matter and absorb nutrients are also used in reproduction.
https://en.wikipedia.org/wiki/Decomposer
Although decomposers are generally located on the bottom of ecosystem diagrams such as food chains, food webs, and energy pyramids, decomposers in the biosphere are crucial to the environment. By breaking down dead material, they provide the nutrients that other organisms need to survive.
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Bacteria are the primary decomposers of dead animals (carrion) and are the primary decomposers of dead plant matter (litter) in some ecosystems.
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Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up. There are two kinds of decomposers, scavengers and decomposers. Scavengers are animals that find dead animals or plants and eat them.
http://www.qrg.northwestern.edu/projects/marssim/simhtml/info/whats-a-decomposer.html
Others, like fungi, can be seen. Different kinds of decomposers do different jobs in the ecosystem. Others, like some kinds of bacteria, prefer breaking down meat or waste from carnivores. Actinolites only break down dead plants, including hard to break down plants and the waste of herbivores.
http://www.qrg.northwestern.edu/projects/marssim/simhtml/info/whats-a-decomposer.html
when a plant or an animal die, its body is decomposed by the decomposers. While decomposing they store back the nutrients in the soil which are again taken by plants then consumed by animals and so on So they help in continuity of nutrien cycle.
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Bacteria are important decomposers; they are widely distributed and can break down just about any type of organic matter. and the bacteria on Earth may form a biomass that exceeds that of all living plants and animals.
https://en.wikipedia.org/wiki/Decomposer
what role do decomposers fill?
Decomposers are organisms that break down dead or decaying organisms, and in doing so, carry out the natural process of decomposition.