Zoology - Structural Organisation in Animals Question with Solution | TestHub

In cockroach, both males and females have 10 abdominal segments. In females, the genital pouch is made up of 7^th, 8^thand 9^thabdominal sterna. Out of this, 7^thsternum is boat-shaped. In male cockroaches, the genital pouch is bound by the 9^thabdominal sternum on the ventral side and 9^thand 10^thterga on the dorsal side. Anal styles are a pair of short structures found only in males. They are absent in females. Anal cerci are a pair of filamentous structures found in the 10^thabdominal segment of both males and females.