Gills
Bivalves
Lungs
Cephalopods
Gastropods
Muscular foot
Shell
A protective layer made of minerals
A group of molluscs. They are mainly aquatic and have an external spiral- shaped shell, like snails.
These structures are used by some aquatic molluscs to breathe
A group of molluscs. Their shel is divided in two parts and they feed by filtration, like clams or mussels
These structures are used by terrestrial mollusc to breathe
A group of molluscs. Their foot is next to their head
They use this part of the body to move. Some molluscs use it to feed themselves.
