mollusks

Question 1

foot

Answer 1

a large muscle located at base of the animal, used in movement

Question 2

visceral mass

Answer 2

the region containing most of the main internal organs
and external gill

Question 3

mantle

Answer 3

outgrowth of the body wall that covers the visceral mass,
forming an enclosure called the mantle cavity

Question 4

lineages of mollusks

Answer 4

• Chitons (mollusks with dorsal shells made of plates)
• Bivalves (clams and mussels)
• Gastropods (slugs and snails)
• Cephalopods (squids and octopuses)