Mollusks

What kind of symmetry do mollusks have?

• Radial

• Balanced

• Bilateral

• Asymmetry

What are most sea shells made out of?

• silica

• calcium carbonate

• diatomaceous earth

• rock

Tags

NGSS.MS-PS1-1

Which of the following bivalves is sessile and creates its own cement to stick to surfaces?

• Coquinas

• Oysters

• Clams

• Scallops

What class of mollusks do nudibranchs belong to?

• Polyplacophora

• Scaphopoda

• Bivalvia

• Gastropoda

What are chromatophores for?

• migration

• attacking predators

• coloration/ camouflage

• eating

What is the internal shell of a squid called?

• Pen

• Spine

• Silica

• Cuttlebone

The only solid part of an octopus is its...

• Siphon

• Spine

• Skull

• Beak

What gastropod drilled these holes?

• Cone Snail

• Abalone

• Moon Snail

• Chiton

What is this?

• Whelk egg case

• Worm casing

• Sea snake

• Octopus egg case

This gastropod's operculum does all of the following except...

• Prevents drying out

• Covers aperture

• Protects snail from predators

• Catches food