Abdomen.
Insects are a class within the arthropod family that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes, and two antennae.
Thorax
the thorax
the tympanum
Its exoskeleton.
their eyes
Abdomen
It is the tongue.
Insects have three body parts, Head, Thorax and Abdomen. I therefore believe Thorax is the correct answer to your question.
The body part that insects have and cat fleas do not is wings. Fleas are wingless insects that feed on the blood of animals including cats.
The heart is a common part of the body that is found in snakes and insects. Eyes are another common feature between insects and snakes.
the nervous system
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