Clams snails and octopuses are part of which vertertebrates?

Clams, snails, and octopuses are not vertebrates; they are part of the phylum Mollusca. This group is characterized by soft-bodied animals, often with a hard shell. Mollusks are further divided into classes, with clams and snails belonging to the class Bivalvia and Gastropoda, respectively, while octopuses belong to the class Cephalopoda.