Which three parts are distinct in an insect's body?

Insects exhibit a body structure that is divided into three distinct parts: the head, thorax, and abdomen. The head contains the insect's sensory organs, including the eyes and antennae, and is where the mouthparts are located for feeding. The thorax is the middle section that houses the legs and wings, if present, and is responsible for movement. The abdomen, which is the posterior section, contains vital organs for digestion, reproduction, and gas exchange.

Understanding these three parts is essential for studying insect anatomy and physiology, and they are vital to the classification and identification of various insect species. Other options do not accurately reflect the primary divisions found in an insect's body, focusing instead on elements such as wings, legs, or antennae, which are not independent body segments but rather components or appendages associated with these three main body regions.