An exoskeleton is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton of, for example, a human. In usage, some of the larger kinds of exoskeletons are known as "shells".

What is exoskeleton explain with example?

Exoskeletons are the hard coatings on the outside of some animals, mostly arthropods. They are nonliving, made of chitin and calcium carbonate. ... Examples of animals with exoskeletons are grasshoppers, cockroaches, ants, bees, scorpions, cicadas, lobsters, shrimp, black widows, snails, and crabs.

What is exoskeleton in biology?

exoskeleton, rigid or articulated envelope that supports and protects the soft tissues of certain animals. The term includes the calcareous housings of sessile invertebrates such as clams but is most commonly applied to the chitinous integument of arthropods, such as insects, spiders, and crustaceans.