What is the support system of crayfish?

Crayfish possess an exoskeleton as their primary support system. The exoskeleton is a rigid external cover made of chitin, a complex carbohydrate, and proteins. It provides structural support, protection, and attachment points for muscles. The exoskeleton consists of several segments connected by flexible membranes, allowing for movement and growth. Muscles connect to the inner side of the exoskeleton, enabling the crayfish to move its body, appendages, and claws. Additionally, the exoskeleton provides protection against external factors and helps maintain structural integrity during the growth and molting cycle of the crayfish.