What is an extoskelaton?

Answer 1

An exoskeleton is a rigid external framework that provides support and protection to an organism, typically found in invertebrates such as insects, crustaceans, and arachnids. Made primarily of chitin or calcium carbonate, it serves as both a protective barrier against environmental hazards and a structure for muscle attachment, enabling movement. Unlike an endoskeleton, which is located inside the body, an exoskeleton must be periodically molted to allow for growth.