Phylum Mollusca

Which of these cephalopods has an external shell?

• cuttlefish
• squid
• octopus
• nautilus

Which class of mollusks are represented by both terrestrial, freshwater, and saltwater species?

• cephalopods

• gastropods

• bivalves

• porifera

Mollusks that have 2 hinged shells belong to which class.

• cephalopods

• gastropods

• arthropods

• bivales

What does Cephalopod mean?

• means "2-shells"
• means "head-foot"
• means "stomach-foot"

Which part of the Mollusk body is the tissue covering the body and secretes the shell?

• Mantle
• Trochophore
• Foot
• Visceral Mass

Which part of the Mollusk body contains organs?

• Foot
• Visceral Mass
• Trochophore
• Mantle

Which class of Mollusks include squid, cuttlefish and octopus?

• Gastropods
• Bivalves
• Cephalopods
• Polyplacophora

Mollusk's tongue-like strip covered with teeth that point backward is called the ____

• trochopore
• radula
• gills
• visceral mass

Which of these is NOT one of the three main body parts of a mollusk? 

• Head
• Valve
• Foot
• Visceral Mass

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

• trochophores
• visceral mass
• mantle
• foot