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.
THey use a shell
the function of the its shell is to protect the mollusk's very vulnerable and sensitive organs.
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.
yes
no
slug
jellyfish
A shell