How do mollusks receive nutrition?

Answer 1

Depends on the type of mollusk.

Clams and oysters and scallops generally filter nutrients such as plankton out of the water. Some giant clams also have symbiotic algae growing in their flesh (zoothanthellae) that also contribute to their nutrition.

Some molluscs are fierce predators as well- octopi, squid, cuttlefish, conch, cone shells, and others- they will eat pretty much whatever they can catch. (And several are actually venomous! A sting from a cone-shell can make you very very sick indeed, or even be fatal!)

(Biology teacher/Professional Naturalist)

Answer 2

Mollusks eat through their mouths, and carry their food with their claws and sometimes even carry their food in their mouth.

Answer 3

A Mollusk is an invertebrate with a soft unsegmented body often covered by a shell. Shellfish, such as oysters, clams, cockles, etc, are filter feeders.