Answer to Question #155009 in Biology for Anas

Question

Describe a distinctive feature of the annelids and give an example of an organism that shows this feature?

Answer 1

Annelids have bilateral symmetry and a fluid-filled cavity between the outer body wall and the gut - a coelom. Annelids have a body covered by an external cuticle and parapodia - unjointed segmental extensions of the body wall. In most annelids, there are usually two fluid systems, the coelom, and the circulatory system. These features are clearly represented in polychaetes, for example, an earthworm.