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5. Distinguish between the following
      (a) Prostomium and peristomium

Answers (1)

The major difference between Prostomium and Peristomium is discussed below: 

Prostomium 

Peristomium

The prostomium is the fleshy lobe which overhangs the mouth of an earthworm Peristomium is the first segment of the body of the earthworm
It helps  the earthworm push into the soil and is sensory in function It surrounds the opening of the mouth 

 

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Sonika

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