EVERYDAY SCIENCE

Detailed explanation-1: -An exoskeleton is a hard external skeleton that protects the outer surface of an organism and enables movement through muscles attached on the inside. An endoskeleton is an internal skeleton composed of hard, mineralized tissue that also enables movement by attachment to muscles.

Detailed explanation-2: -Exoskeleton is mainly found in the vertebrates like reptiles, fishes and mammals. It is the living structure which protects the internal organs.

Detailed explanation-3: -Introduction. The exoskeleton (shared with other arthropods) provides protection against predation and desiccation or waterlogging (necessary for small organisms) and innumerable points of muscle attachment (for flexibility). However, the exoskeleton also limits the size attainable by arthropods.

Detailed explanation-4: -Protection: The exoskeleton protects the soft internal tissues and organs. Support: The exoskeleton provides structural support and shape. Prevents Desiccation: The exoskeleton prevents desiccation (drying out) on land.

Detailed explanation-5: -The exoskeleton provides a large surface area for the attachment of muscles and, in addition to functioning in support and movement, also provides protection from the external environment.