Segmented worms, mollusks- Haila


~ Some have a hard shell to protect themselves from danger or predators.

~ Some reproduce sexually.

~ Some have bivalves.

~ Don't have bones.

Segmented Worms

~ They have a circulatory system.

~ They have five large tubes that act like hearts.

~ They have a nerve center, or brain in its head.

~ They have a band in the middle of its body.