What is an arthropod exoskeleton made of?
The exoskeleton is composed of a thin, outer protein layer, the epicuticle, and a thick, inner, chitin–protein layer, the procuticle. In most terrestrial arthropods, such as insects and spiders, the epicuticle contains waxes that aid in reducing evaporative water loss. What is the function of the arthropod exoskeleton? The external skeleton of arthropods is a…