most molluscs have a well developed cephalization. ... most others ( think clam ) are grazers, scavengers, or cephalization.

Does molluscs have cephalization?

Both flatworms and molluscs are triploblastic, bilaterally symmetric, and cephalized.

Do molluscs lack cephalization?

Mollusks represent another group in which cephalization has been lost and regained. For example, bivalves are not particularly cephalized (although some scientists have argued that they are "all head"). However, as with the echinoderms, certain mollusks regained cephalization.