What is the difference between the way that saprotrophs and detritivores digest their food

Externally

Explanation:

Usually, detritivores are mostly animals, while saprotrophs are mostly fungi. Furthermore, detritivores consume lumps of dead organic matter separately, while saprotrophs absorb chemically digested food. Saprotrophs digest their food externally, whereas detritivores do it internally in the digestive system.

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