Describe the principal body parts of an adult mosquito.

• A. Head, thorax, and abdomen, 2 well-developed wings, 6 legs, antennae and a proboscis
• B. Head only
• C. Three wings and 4 legs
• D. No antennae

Answer: (A)

The main idea is that an adult mosquito has three body regions—the head, thorax, and abdomen—and a set of external features that you can use to recognize it: two wings, six legs, antennae, and a proboscis. The head houses the eyes, antennae, and the slender feeding tube (proboscis); the thorax is where the wings attach and where the legs are anchored; the abdomen contains the digestive and reproductive organs. This combination—three body parts plus the characteristic appendages—is the standard adult mosquito anatomy you’d expect to see when identifying or studying them. The other options leave out essential parts (like the thorax and abdomen or wings) or give incorrect counts (such as three wings or no antennae), which don’t match how mosquitoes are actually built.