An INSECT is an invertebrate animal that has an exoskeleton, six legs, and three body parts. The term 'INSECT' is derived from the Latin word 'insectum, ' meaning 'cut into sections.' The THORAX is the middle section of an INSECT's body, located between the head and the abdomen. It contains the legs and wings, and is responsible for movement. Antennae are sensory organs found on the head of an INSECT, used to detect smells, sounds, and other stimuli. They are composed of several segments, and can be either long or short depending on the species.