Question

which of these are advanced, agile predators with either an internal shell or no shell at all along with a beak - like set of jaws and a radula to crush or rip prey? class cephalopoda class gastropoda

Explanation:

Cephalopods (Class Cephalopoda) are advanced, agile predators. They have either an internal shell (e.g., in squids) or no shell (e.g., in octopuses), possess beak - like jaws, and a radula to process prey. Gastropods (Class Gastropoda) are mostly slower - moving, many have external shells, and their feeding and locomotion patterns differ from the description.

Answer:

A. Class Cephalopoda