Any of numerous chiefly marine invertebrates of the phylum Mollusca, typically having a soft unsegmented body, a mantle, and a protective calcareous shell and including the edible shellfish and the...
Mollusk is an invertebrate animal. Some mollusks are covered with shell and some has tentacles. Mollusk are soft-bodied invertebrate animal. Examples are octopus, snail , oyster and clam. -Co0leTs24