Assertion : Spermathecae aare the main part of reproductive system of annelida.
Reason : Spermathecase help in sperm transfer.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

A

Explanation

In annelida four pairs of flask shaped sacs, each with a diverticulum for storage of sperms and large ampulla for their nourishment is present. Spermathecae occur in 6-9 segments. They receive sperm during copulation. As cross fertilization occurs in earthworm, the sperms of one worm are transferred to spermathecae of the other.