Question

Male cockroach differs from female cockroach in having

• A. Antennae
• B. Labrum
• C. Maxillae
• D. Anal styles

Answer 1

The correct option is D Anal styles

Antennae is a sensory structure, labrum and maxillae are parts of the mouth, therefore present in both male and female. Cockroaches are dieocious and dimorphic. The male cockroach has a pair of anal styles-filamentous structures that originate from the ${10}^{th}$ segment and act as sensory organs.

So, the correct answer is 'Anal styles'