Animal Kingdom Question 254

Question: Assertion : Spermathecae are the main part of reproductive system of annelida. Reason : Spermathecae 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

Show Answer

Answer:

Correct Answer: A

Solution:

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 transferred to spermathecae of the other.