Question

The number of abdominal segments in male and female cockroach is 
(a) 10,10
(b) 9,10
(c) 10,11
(d) 8,10 

Answer 1

Hint: Cockroach’s stomach segments bear brood genital pouch and the last one bears a pair of jointed filamentous structures that are calld anal cerci.
Complete answer:
In a male and female cockroach, the abdomen consists of 10 segments. The cockroach body has a head, thorax, and abdominal region. 
Abdomen: In a male and female cockroach the abdomen consists of 10 segments. A genital pouch in females is created by the 7th, 8th, and 9th sterna. In males, on the hind end of the abdomen is the genital pouch. The male cockroach has thread-like anal styles which the female cockroach lacks. In both male and female cockroaches, the 10th segment has a filamentous structure called the anal cerci.
Head: It bears two compound eyes and two long antennae that emerge from their heads. On the anterior portion, the mouth is present which bears a pair of mandibles, a pair of maxillae, and a labium. A flexible, median lobe serves as a tongue.
Thorax: The thorax is divided into three components-Prothorax, Mesothorax, and Metathorax. Prothorax connects the head and thorax which is a short extension known as the spine. The mesothorax produces the first pair of wings while the second pair of wings originate from the metathorax. It also bears a pair of legs in the thorax area. It also includes forewings, called tegmina.

 
So, the correct answer is ‘10,10’.

Note: Common female cockroaches will reproduce without having a mate for years, creating dozens of generations of all-female offspring. Parthenogenesis is a type of asexual reproduction that allows the spawning of young insects from unfertilized eggs.