Phylum Mollusca

Cephalopods move by

• using jet propulsion or creeping

• waving their tentacles back and forth in water

• clapping their shells together.

This class of mollusks is considered to be the most intelligent.

• bivalves
• cephalopods
• gastropods

Which of the following is a function of the mantle in many mollusks?

• Mantle covers the internal organs, may also create shell.

• Mantle enables the mollusk to move.

• Mantle helps the mollusk digest food.

• Mantle removes wastes.

Cephalopods possess pigment changing ability through the use of their......

• Radula

• Chromatophores

• siphon

• Mantle

The 180 Degree twisting rearrangement of viceral mass is found in the class....

• Cephalopoda

• Bivalvia

• Gastropoda

The Mollusk Body is divided into three main regions....

• Mantle, head, visceral mass

• Foot, Mantle, siphon

• head-foot, visceral mass, anus

• head-foot, visceral mass, mantle

The Squid, octopus, chambered nautilus, and cuttlefish belong to which class of molluscs

• Cephalopoda

• Gastropoda

• Bivalvia

Clams and scallops are

• Predators

• Photosynthetic

• Filter feeders

Which part of the Mollusk body is specialized for burrowing, feeding, and movement?

• trochophores
• visceral mass
• mantle
• foot

Which class of Mollusks include organisms that all have two shells?

• Gastropods
• Bivalves
• Cephalopods