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Q.

Select the correct match regarding Pheretima.

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a

Spermathecal pores - 3rd to last segments

b

Male genital pores - 18th segment

c

Female genital pore - 15th segment

d

Mouth - Prostomium

answer is B.

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Detailed Solution

In Pheretima, a pair of male genital pores on the ventro-lateral side of the 18th segment.

Four pairs of spermathecal apertures are situated on the ventro-lateral sides of the intersegmental grooves, i.e., 5th -9th segments. 

A single female genital pore is present in the mid-ventral line of 14th segment.

Anterior end consists of the mouth and the prostomium, a lobe which serves as a covering for the mouth and as a wedge to force open cracks in the soil into which the earthworm may crawl.

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