Zoology 8th Edition by Stephen Miller,John Harley

تمرين 48

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