What is the percentage of dry body weight made up by an insect's exoskeleton?

The correct percentage of dry body weight made up by an insect's exoskeleton is approximately 50%. Insects possess an exoskeleton composed of chitin, a complex carbohydrate that provides structural support and protection. This exoskeleton plays a critical role in the insect's physiology, allowing it to survive in a variety of environments by preventing water loss and offering a robust defense against predators and external forces.

As a significant component of their body structure, the exoskeleton represents around half of an insect's dry weight. This substantial percentage highlights the importance of the exoskeleton not just in physical protection but also in overall body composition. Understanding this aspect is crucial for structural pest control operators, as it relates to how insects can react to environmental pressures and pest control measures.