Zoology 10th Edition by Stephen Miller,John Harley

تمرين 5

The inner layer of the exoskeleton of an arthropod is called the _____________. It contains chitin, and its outer region is hardened. The outermost layer of the exoskeleton is waxy and impermeable to water. Which one of the following terms correctly fills the blank in the first sentence?
A) epicuticle
B) procuticle
C) hypodermis
D) basement membrane