MyCompetitiveExams Dynamic 180-question full-length simulator mixed dynamically from all 6 years for 2027 & 2026 aspirants.
In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on:
Anal CERCI are present in BOTH sexes on the 10th segment! Anal STYLES are present ONLY in males on the 9th sternum!
The abdomen in both male and female cockroach consists of 10 segments.
NCERT explicitly describes: 1. Anal cerci: In both sexes, the 10th segment bears a pair of jointed filamentous structures called anal cerci (sensory to sound and vibrations). 2. Anal styles: Males bear a pair of short, threadlike anal styles on the 9th sternum which are absent in females.
Anal cerci are located on the 10th segment (Option 4).
Diagnose every choice: Know exactly why the right option works and why distractors fail.
Female genital pouch is formed by 7th, 8th, and 9th sterna.
Cockroach abdomen has only 10 segments in adults.
5th segment is an anterior abdominal segment lacking terminal appendages.
Both male and female cockroaches bear jointed filamentous anal cerci on their 10th abdominal segment.
Confusing 9th segment (anal styles in males only) with 10th segment (anal cerci in both sexes).
"In both sexes, the 10th segment bears a pair of jointed filamentous structures called anal cerci. Males bear a pair of short, threadlike anal styles which are absent in females."
Test your speed and accuracy in the authentic 200-minute timed NTA simulator.
Spotted a mistake in this solution? Report an error ([email protected])
Cover all 1,140 official NEET questions in 285 days at your own pace. Progress is saved on your device. No login needed.