they live in the shells.
they all have hard shells and live in the ocean
Since the shells of mollusks are composed of calcium carbonate (limestone), the likelihood of the surrounding rocks being limestone too would be very high, due to the shells of dead mollusks.
most have shells
They have shells.
Mollusks have soft body and hard shells but some don't even have shells.
Some mollusks live in shells made of calcium carbonate, but they do not have exoskeletons like insects do.
clown fish
Yes, they are mollusks as well
crustations
Slugs,Octopus
Mollusks are soft bodied animals that can have no shells,1 shell or even 2 shells. Snails, clams, sea slugs, clams, scallops, oysters, octopuses, and squid, are some types of Mollusks.
Norman W. Lermond has written: 'Shells of Maine' -- subject(s): Mollusks 'Shells of Maine' -- subject(s): Mollusks