Mollusks Shape of Life Video Quiz

About how many types of molluscs currently exist on the planet?

• 15,000

• 50,000

• 150,000

• 300,000

What is the fold of skin that secretes the body armor of mollusks?

• Mantle

• Foot

• Radula

• Shell

Which mollusk has developed three well-placed ridges along its shell to foil a crab's attempt to get a shell-breaking grip?

• Cockle

• Nautilus

• Moon Snail

• Abalone

What is the name of the predatory mollusk that can inflate its foot to four times the size of its entire shell?

• Abalone

• Moon Snail

• Cockle

• Nautilus

What is the name of the ribbon of teeth like a chainsaw blade used by mollusks to tear through kelp?

• Shell

• Mantle

• Radula

• Foot

What is the maximum speed at which some squid are capable of traveling?

• 10 miles per hour

• 15 miles per hour

• 20 miles per hour

• 25 miles per hour

What is the name of the mollusk that can change color and texture in an instant for camouflage?

• Octopus

• Abalone

• Nautilus

• Squid

What is the ultimate skin invented by nature for the octopus without a protective shell?

• Elastic fiber skin

• Camouflage skin

• Hard iron mineral skin

• Poisonous skin