Cephalopods
cephalopods
Shell-less mollusks include: Squids, cuttlefish, and octopuses (class Cephalopoda) Nudibranchs & slugs (class Gastropoda) A+=slug
A mollusk is a sea creature that lives within a shell. A cobra does not live in a shell.
The scientific name of the elephant tusk shell is "Dentalium elephantinum." It is a marine mollusk that belongs to the class Scaphopoda.
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.
no
yes
slug
jellyfish