Question Detail
Question
Which one of the following phenomena occurs during reproduction in Neanthes?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Epitoky is a phenomenon in some polychaete annelids like Neanthes (Nereis) where the posterior segments become modified for a reproductive (swarming) stage, forming an epitoke. The epitoke detaches and swims to the surface to release gametes. Endomixis is a form of nuclear reorganization in ciliates, hectocotylization is a modified arm in cephalopods for sperm transfer, and metagenesis is alternation of generations in cnidarians.
Hint
This term describes the transformation of the posterior body region into a reproductive swimming stage in some marine annelids.