Q. Which of the following features is used to identify a male cockroach from a female cockroach ?
A) Forewings with darker tegmina
B) Presence of caudal styles
C) Presence of a boat shaped sternum on the $9^{th}$ abdominal segment
D) Presence of anal cerci
Explanation
[Solution] Only male cockroaches have a pair of anal (caudal) styles. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.