Question

the largest class within phylum annelida are marine annelids that live in marine habitats and move with paddle - like or bristly appendages which are attached to each segment. which class is the largest class within the phylum annelida? class polychaeta class oligochaeta

Explanation:

Polychaeta is the largest class of Annelida. They are marine annelids with paddle - like (parapodia) or bristly appendages on each segment, matching the description. Oligochaeta (e.g., earthworms) are mainly terrestrial or freshwater and not the largest class here.

Answer:

A. Class Polychaeta