EVERYDAY SCIENCE

Detailed explanation-1: -An exoskeleton (from Greek éxō “outer” and skeletós “skeleton") is an external skeleton that supports and protects an animal’s body, in contrast to an internal skeleton (endoskeleton) in for example, a human. In usage, some of the larger kinds of exoskeletons are known as “shells ".

Detailed explanation-2: -An exoskeleton is a hard covering that supports and protects the bodies of some types of animals. The word exoskeleton means “outside skeleton.” Many invertebrates, or animals without backbones, have exoskeletons. Insects are the largest group of animals that have an exoskeleton.

Detailed explanation-3: -An exoskeleton is the external skeleton that supports and protects an animal’s body. An exoskeleton is a key feature of arthropods, a category of animals that includes insects, spiders, and crustaceans.

Detailed explanation-4: -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.

Detailed explanation-5: -The exoskeleton is the hard outer shell (nonliving layer) of an insect, in contrast with the endoskeleton of humans and other mammals.