Mollusk and Echinoderm By Dominick
- some Mollusks have a hard shell that protects their body
- some have bivalves like oysters and clams
A snail is a gastropod meaning stomach foot, which is a smaller group inside the group mollusk.
A squid is a cephalopod meaning head foot, which is a smaller group in Mollusk.
A Clam is a bivalve meaning "two doors", which is a group in mollusk.
- no head or brain
- live only in the ocean