Question:
Distingusish between the followings (a) Prostomium and peristomium (b) Septal nephridium and pharyngeal nephridium
Answer:
HI'
Prostomium is a structure which help earthworms to dig earth near mouth & Peristomium is first segment of earthworm which includes
mouth and prostomium.
Pharyngeal nephridium is nephridium near pharynx of earthworm.
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