Arthropods' Structure (Crayfish)

Letter C is identifying what part of a crayfish?

• abdomen

• cephalothorax

• telson

Letter G is identifying what part of a crayfish?

• abdomen

• maxilliped

• swimmerets

Letter E is identifying what part of a crayfish?

• abdomen

• maxilliped

• telson

Another name for the pinchers/claws are

• swimmeretts

• thorax

• chelipeds

How do crayfish breathe?

• gills

• they don't

• through their skin

What is #1 (the longer sense organs on the head)?

• Antennules

• Antennae

• Maxilla

What is #2 (the shorter sense organ on the head)?

• Antennules

• Antennae

• Maxilla

What is #2, which the crayfish uses to breath?

• Gills

• cephalothorax

• Exoskeleton

What is molting?

• Melting with an "o"

• The shedding of an exoskeleton to allow the animal to grow

• When an arthropod loses it's legs

How do exoskeletons help the arthropod?

• It is used for mating

• It helps them hibernate

• It acts as protection for the arthropod and keeps moisture in