NEET BIOLOGY

Detailed explanation-1: -Soft-bodied invertebrates, mollusks include slugs, snails, octopuses, squid, clams, and mussels. Most mollusks have SHELLS to protect them.

Detailed explanation-2: -mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.

Detailed explanation-3: -The molluscs include many familiar animals, including clams, snails, slugs, and squid, as well as some less familiar animals, like tusk shells and chitons (Fig. 3.51 A).

Detailed explanation-4: -The soft bodies of common mollusks, like clams, oysters, snails, scallops, squid, and octopus, are eaten as food and that hard shells found on many mollusks have been crafted into tools, decorations, and even musical instruments for centuries.