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Standard XII
Biology
Question
The segment of earthworm in which mouth is situated is called
Prosoma
Prostomium
Peristomium
Prosegment
A
Prosoma
B
Prostomium
C
Peristomium
D
Prosegment
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Solution
Verified by Toppr
Earthworm lack distinct head. The first segment at the anterior end of the body is called peristomium or buccal segment which bears crescentic mouth.
Peristomium bears a fleshly lobe-like structure called prostomium which hangs over the mouth ventrally.
So, the correct option is 'Peristomium'.
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