A
Anal styles are unjointed structures found in both the sexes.
B
In males, genital pouch is formed by the 7th, 8th, and 9th sterna.
C
The exchange of respiratory gases takes place in tracheoles.
D
The nerve cord consists of a series of 9 pairs of segmental ganglia.
Solution:
Anal styles are unjointed and present in male cockroaches.
In males genital pouch is formed by the , terga dorsally, and sternum ventrally.
Gaseous exchange occurs at tracheoles by diffusion.
Segmental ganglia are nine, 3 thoracic, and 6 abdominal.
