Correct Answer:
Option A - Annelida is a phylum of segmented worms that have setae or parapodia for locomotion. They are found in various habitats , such as marine , freshwater, and terrestrial environments. They have a well-developed coelom, circulatory system, and nervous system. Some example of annelids are earthworms, leeches , and polychaetes.
A. Annelida is a phylum of segmented worms that have setae or parapodia for locomotion. They are found in various habitats , such as marine , freshwater, and terrestrial environments. They have a well-developed coelom, circulatory system, and nervous system. Some example of annelids are earthworms, leeches , and polychaetes.