Crustacean

What do crustaceans use to breathe?

• nose

• gills

• skin

• air vents

How do arthropods move?

• Swimming
• Jointed Appendages
• Opposable Thumbs
• They do not move

Appendages on crayfish that serve as feelers sensitive to touch, taste and balance

• chelipeds
• mandibles
• antennae
• swimmerets

What is the exoskeleton of crustaceans and echinoderms made of?

• Hemocoel
• Dermocoel
• Carbohydrates
• Chitin

Why do arthropods have to shed their exoskeletons?

• it wears out
• they don't shed
• it limits the size they can grow
• to go from water to land environments

Most anterior legs on crayfish that have pincers for capturing food and defense

• chelipeds
• swimmerets
• mandibles
• maxillae

How many pair of antennae do crustaceans have>

• 4
• 2
• 1
• 3

The structures labeled E are the

• swimmerets
• walking legs
• maxillae
• uropods

The structure labeled  C is the

• antennae
• carapace
• abdomen
• uropods

The portion of exoskeleton that covers the cephalothorax is the 

• telson
• carapace
• uropod
• cheliped