What part of the insect body is attached to the thorax?

The thorax is one of the three primary sections of an insect's body, the other two being the head and the abdomen. It is specifically designed to house the structures necessary for locomotion. This includes the wings and legs, which are crucial for movement and flight.

Wings, when present, allow insects to fly, and their number and arrangement can vary widely among different insect species. The legs, which are also attached to the thorax, facilitate walking, running, jumping, or swimming, depending on the species. Each set of legs is typically segmented and muscles within the thorax enable movement.

In contrast, the other options include body parts that do not connect directly to the thorax. Antennas and eyes are associated with the head, mouthparts can be found on the head as well, and the abdomen, which houses various organs, is positioned behind the thorax, further distinguishing it from the thoracic structures. This specificity in anatomy is critical in understanding insect morphology and functions, particularly in the context of pest control and biology.