Cephalopods

The pigment cells in many cephalopods that help with camouflage pictured here are called

• odontophores

• chromatophores

• photophores

• melanocytes

The part of the cephalopod body that helps with propulsion through the water is the

• jet
• siphon
• pen
• mantle

Ancestral cephalopods are called

• ammonites

• brachiopods

• sarcopterygii

• helcionellids

Tags

NGSS.MS-LS4-1

This cephalopod is a member of 

• Superorder Decapodiformes
• Superorder Octopodiformes
• Subclass Nautiloidea
• Class Polyplacophora

Tags

NGSS.MS-LS4-2

The nautilus has a shell that primarily functions in

• protection

• buoyancy

• egg storage

• camouflage

Among mollusks, which is a special characteristic of cephalopods?

• an open circulatory system.
• a two way digestive system.
• the only mollusk class with gills.
• a closed circulatory system.

The modified arm of male cephalopods that is used for reproduction is called the

• spermatophore
• hectocotylus
• crop
• chromatophore

Tags

NGSS.MS-LS4-2

Which group of cephalopods can have barbed / clawed tentacles? 

• Cuttlefish
• Nautilus
• Squid
• Octopuses

Which group of cephalopods has ability to flatten body to fit in small spaces and change skin to blend with surroundings?

• Cuttlefish
• Nautilus
• Squid
• Octopuses

The similarity between the vertebrate and cephalopod eye is a great example of 

• convergent evolution
• divergent evolution
• macroevolution
• speciation

Tags

NGSS.MS-LS4-2