they would have less protection.
a one shelled mollusk
The spiral shelled mollusk that many people know these days are the snail it is a spiral shell to protect this animal from its prey.
They would have less protection from predators! (plato)
A mollusk is a sea creature that lives within a shell. A cobra does not live in a shell.
the function of the its shell is to protect the mollusk's very vulnerable and sensitive organs.
THey use a shell
Every mollusk except slugs, which have evolved to not need a shell, has a shell. Snails, clams and other bivalves have an external shell. Octopi, squid and cuttlefish have an internal shell.
it is called a bivalve
No it isn't. Pearl is a hard, generally spherical object produced within the soft tissue (specifically the mantle) of a living shelled mollusk. Just like the shell of a mollusk, a pearl is made up of calcium carbonate in minute crystalline form, which has been deposited in concentric layers.
no
slug
yes