Q. In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on:
A) 8$^{th}$ and 9$^{th}$ segment
B) 11$^{th}$ segment
C) 5$^{th}$ segment
D) 10$^{th}$ segment
Explanation
[Solution by Claude - not from source] Per NCERT, anal cerci are on the 10th abdominal segment in both sexes. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.