The group that is responsible for mechanically breaking down the
leftovers are detritivores. They are also called decomposers.
Detritivores and descomposers
Decomposers are heterotrophic organisms that obtain their food by breaking down organic substances.
Moreover, detritivores are a special type of decomposer (heterotrophic organisms) that obtains their food by consuming decomposed parts of plants and animals.
Detritivores are decomposers that are also known to consume different types of animal feces.
Learn more about decomposers here:
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