Phylum Mollusca - Mollusks - includes snails, slugs, clams, scallops ...
Phylum Mollusca - Mollusks - includes snails, slugs, clams, scallops ...
Phylum Mollusca - Mollusks - includes snails, slugs, clams, scallops ...
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Basic body plan has been modified for different purposes in thedifferent classes - Chitons closest to basic plan. Gastropods havetwisted visceral mass. Bivalves have lost head, and gills areused for feeding. Cephalopods have modified foot into tentacles,and mantle is used for jet propulsion.