INSECTS (ARTHROPODS)
Arthropoda. They possess and exosqueleton with a cuticle made of chitin, often minerisaled with calcium minerals, a body with differentiated (metameric) segment, and paired jointed appendages In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. They form an extremely diverse group of up to ten million species.
