Saprotrophs interact with their environment at the microscopic level. They feed on a process known as absorbing food, in which a nutrient substrate (such as a dead organism or other non-living organic matter) is directly digested by various enzymes that are secreted by the saprotroph. Enzymes convert detritus into simpler molecules, which are then absorbed by cells to power the body.
Bacteria decompose dead animal flesh well and are effective in converting animal tissues into simpler organic compounds.
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