I think for me the process of excretion with the process of
defecation is by the process of excretion with the process of
defecation. Therefore the defecation is the process of excretion by
the process of defecation. Some says excretion is the process with
the defecation process. That's why the organ contrast the process
of excretion with the process of defecation.
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The meaning of defecation is when feces is discharged from the
body.
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The difference between excretion and defecation is excretion is
the removal of waste and defecation is the removal of undigested
waste. During defecation, the nutrients are absorbed by the body
before being removed from the body.