What body part of an insect includes the eyes and antennae?

The head is the correct answer because it is the part of an insect that houses crucial sensory organs, including the eyes and antennae. The head is where the insect's mouthparts are located, along with other sensory structures that allow the insect to navigate and interact with its environment.

Insect eyes, often compound eyes, provide a wide field of vision, while the antennae serve as sensory appendages that detect chemicals, movement, and various environmental cues. These features are vital for survival, helping insects find food, avoid predators, and communicate with one another.

The thorax is primarily responsible for locomotion, containing the legs and wings, while the abdomen contains the digestive and reproductive organs. The cephalothorax is a composite structure found in some arthropods, combining aspects of the head and thorax but is not a term typically used for insects. Thus, the head is distinctly recognized for holding the eyes and antennae.