Phylum Mollusca

Mollusks can be aquatic or terrestrial. 

• True
• False

Mollusks are acoelomates. 

• True
• False

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

• Head
• Valve
• Foot
• Visceral Mass

What is the radula used for?

• Locomotion
• Feeding
• Swimming
• Digging

The protective membrane that surrounds the visceral mass on all mollusks is called...

• Radula
• Mantle
• Nephridia
• Visceral Shield 

The protective shell of a mollusk...

• is secreted by the mantle.
• Grows from the end of the mollusk foot. 
• Is constantly replaced by bigger shells as the mollusk grows. 
• forms when the mollusk reaches adulthood. 

All mollusks have an external shell.

• True
• False

How many overlapping plates make up a chiton's shell?

• 7
• 10
• 6
• 8

What TYPE of mollusk is this?

• Bivalve

• Gastropod

• Cephalopod

What TYPE of mollusk is this?

• Bivalve

• Gastropod

• Cephalopod