Arthropods and Crayfish Parts

Which of the following is NOT a characteristic of arthropods?

• Exoskeleton

• Jointed appendages

• Segmented body

• Endoskeleton

The exoskeleton of an arthropod is made of which of the following?

• chitin

• dentin

• protin

• chlorotin

Which of the following is NOT a function of the exoskeleton

• Protection

• Prevents water loss

• Attachment of muscles

• Aids in digestion

Since the exoskeleton limits the growth of arthropods, they have to shed their exoskeletons and form a new one. This is called ____.

• defecating

• molting

• morphing

• excreting

Which of the following does not belong in subphylum Crustacea?

• Crayfish

• Crabs

• Shrimp

• Millipedes

Which of the following correctly describes a crayfish's body regions?

• head, thorax, abdomen

• head, abdomen

• cephalothorax, abdomen

• head, cephalothorax

Which of the following crayfish appendages contain the claws?

• Uropods

• Telson

• Maxillipeds

• Chelipeds

Which of the following crayfish structures is used for gas exchange?

• Malpighian tubules

• Green glands

• Gills

• Book lungs

How do you determine whether a crayfish is male or female?

• the size of the swimmerets

• the abdomen will or will not have an ovipositor

• it will have claws or not have claws

• the telson is shaped differently

Which class of arthropods are mainly aquatic?

• Crustacea

• Insecta

• Diplopoda

• Chilopoda