How many body regions do mosquito larvae have?

• A. Three
• B. Two
• C. Four
• D. Five

Answer: (A)

Mosquito larvae share the same basic body organization that most insects have: three main regions called tagmata—the head, the thorax, and the abdomen. The head is the front part with sensory organs and mouthparts used for feeding. The thorax is the middle section that connects toward movement and muscle control, even though larvae don’t grow wings or legs as adults. The abdomen is the rear region where most of the digestive and reproductive organs reside and where growth occurs as the larva develops.

Given this standard insect layout, mosquito larvae have three body regions in total. The other numbers would imply additional distinct regions that aren’t recognized in the typical insect body plan for larvae.