Molluska Quiz

The part of the mollusk that produces its shells is the ______. 

• cavity
• mantle
• visceral mass
• ventral foot

The muscles that hold the mollusk shell closed are the _____.

• opercula
• ganglia
• adductors
• chromatophores

Gastropoda, Bivalva, Cephalapoda are all classes within the Phylum _______. 

• Arthropoda
• Mollusca
• Porifera 
• Cnidaria

Bivalves don't have radula because they_____. 

• have two shells
• use gills instead
• are filter feeders
• don't eat meat

The oyster population of the Chesapeake Bay is ______ of the size it used to be. 

• 50-60%
• 1-3%
• 80-90%
• the same 

Which of the Mollusks have a complete closed circulatory system. 

• Gastropoda
• Bivalva
• Cephalapoda
• Nematoda

Which class of Mollusks include clams, oysters, and mussels?

• Gastropods
• Bivalves
• Cephalopods

Which part of the Mollusk body contains organs?

• Foot
• Visceral Mass
• Trochophore
• Mantle

Which group of Mollusks does the picture belong to?

• Gastropod
• Bivalve
• Cephalopod

What Mollusk group does the picture belong to?

• Gastropod
• Bivalve
• Cephalopod