Spiders, ticks, scorpions all belong to which subphylum?

Which of the following is NOT a characteristic of arthropods?

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

Which of the following is NOT a function of the exoskeleton.

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

Which of the following does not belong in subphylum Crustacea?

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

Which of the following crayfish appendages contain the claws?

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

The carapace is the part of a crayfish's exoskeleton to covers and protects the