NEET BIOLOGY

Detailed explanation-1: -Jointed appendages allow the animal much greater flexibility and range of movement.

Detailed explanation-2: -What is the advantage of having a jointed appendage? An advantage of having jointed appendages is that it allows them to move easier with their exoskeleton.

Detailed explanation-3: -Exoskeletons are used to support body weight, assist with lifting, help maintain loads, or stabilize the user’s body.

Detailed explanation-4: -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-5: -At the junction, or joints, between the plates and cylinders the exoskeleton is thin and flexible because it lacks the exocuticle and because it is folded. The folds provide additional surface area as the joints are bent.