Which set of body parts does every mollusk have?

The body plan of a mollusk ordinarily comprised of a head region, a muscular foot, and a visceral mass of abdominal organs that are usually enclosed inside a dorsal shell. Each class holds some contrast on this primary plan.

The structure of the gastropod body is substantially comparable to the primary body plan of mollusks.

Most mollusks have a muscular foot for crawling or burrowing. Some mollusks also have a head with sense organs. The delicate body comprises lungs or gills to breath and digestive and generative parts, all surrounded by a covering like an organ known as the mantle.

then that particular organisms become extinct.