Mollusks Quiz

Which kingdom do mollusks belong to?

• Plantae

• Fungi

• Animalia

• Protista

What type of symmetry do mollusks exhibit?

• Radial symmetry

• Asymmetry

• Bilateral symmetry

• Spherical symmetry

What type of circulatory system do mollusks have?

• Closed circulatory system

• "Open" circulatory system

• No circulatory system

• Single-loop circulatory system

How do mollusks typically move?

• Using wings

• Using a muscular foot

• Using fins

• Using cilia

What do mollusks use to breathe?

• Lungs

• Skin

• Gills

• Trachea

What is the mantle in mollusks?

• A hard exoskeleton that protects the body

• A thin layer that covers the organs and secretes the shell

• A type of fin used for swimming

• The central part of the mollusk's body

What are mollusks usually covered by?

• A soft layer

• A hard shell

• Feathers

• Scales

How are mollusks classified?

• By their color

• By their size

• By the way they move

• By their habitat

Which of the following is NOT one of the three classes of mollusks?

• Gastropods

• Bivalves

• Cephalopods

• Arthropods

How many shells do bivalves such as clams have?

• 1

• 2

• 3

• 4