What are the main parts of an insect's body?

Insects possess a three-part body structure comprising the head, thorax, and abdomen. The head houses the sensory organs and mouthparts, enabling insects to interact with their environment. The thorax is primarily responsible for locomotion, containing the legs and wings—if present. The abdomen typically contains the digestive and reproductive organs and is often involved in processes like digestion and reproduction.

The other options reflect variations of body segmentation found in different groups of arthropods but do not accurately represent the standard anatomy specific to insects. The cephalothorax and abdomen combination is more characteristic of arachnids, such as spiders, rather than insects. Insects do not have a cephalothorax; instead, they distinctly separate the head and thorax. Additionally, referencing only wings and legs fails to encompass the entire body structure and its functions. Understanding this foundational anatomy is crucial for recognizing the diverse characteristics and behaviors of insects within pest control and related fields.