Exploring Phylum Molluska Quiz

Which of the following is a characteristic feature of animals belonging to the phylum Mollusca?

• Jointed appendages

• Soft bodies with a protective shell

• Exoskeleton made of chitin

• Radial symmetry

Which of the following is NOT a class within the phylum Mollusca?

• Gastropoda

• Cephalopoda

• Arthropoda

• Bivalvia

Which of the following is a bivalve?

• snail

• squid

• oyster

• scallop

Compare the movement of gastropods and cephalopods. Which statement is correct?

• Both move by jet propulsion.

• Gastropods crawl using a muscular foot, while cephalopods use jet propulsion.

• Both use cilia for movement.

• Cephalopods crawl using a muscular foot, while gastropods use jet propulsion.

A student observes a mollusk with a single, coiled shell and a distinct head with tentacles. To which class does this organism most likely belong?

• Bivalvia

• Gastropoda

• Cephalopoda

• Polyplacophora