What is a characteristic feature of a rigid exoskeleton in insects?

A rigid exoskeleton in insects serves several vital functions, primarily providing support and protection. This hard outer covering is made of chitin and other substances, which gives it strength and durability, allowing it to withstand environmental stresses and physical impacts. The exoskeleton also helps maintain the insect's body shape, providing structural integrity and a framework for muscle attachment.

In addition to structural support, the rigid nature of the exoskeleton protects vital internal organs from damage and helps prevent desiccation by minimizing water loss. This feature is particularly important for insects, as they often live in environments where moisture can be limited. The rigidity of the exoskeleton is crucial for the insect's survival and overall functioning, making it an essential characteristic of their anatomy.

While flexibility may be necessary for certain movements, the overall rigidity of the exoskeleton is what primarily provides the essential support and protective functions that are characteristic of insect physiology.