The presence of he shell, the type of shell, the type of foot, and the type of nervous system
the 8 groups of invertebrates are the arthropods, poriferans, platyheminthes, coelenterates, nematoeds, mollusks, echinoderms, and annelids
The three major groups of mollusk are Gastropods, Bivalves, and Cephlapods.
Soft bodies
Bivalve mollusks
Their foot
Mollusks are divided into three main groups based on certain characteristics. The three main groups of common mollusks are snails, slugs, and their relatives; Two-shelled mollusks; and tentacled mollusks.
sponges+mollusks+arthropods+worms+octopods+echinoderms
Flatworms, Roundworms, Annelids, Mollusks, and Arthropods
snail squid octopos
The three primary characteristics of mollusks are a mantle with a cavity for breathing and excretion, a radula, and the structure of the nervous system. Squid and other cephalopods have all of these characteristics.
Pilgrams, Christopher Columbus, Kelleher Michelin
UnivalvesBivalvesCephalopods