Explain the male and female cockroach abdomen
Anal cerci are a pair of appendages at the end of the abdomen, arising from near the 10 th segment of the body of cockroach. These are present in both males and females. Anal cerci are important sense organs of the organism as they are wind sensitive and detect vibrations.Abdomen is broader in female than in male. In male in addition to cerci, the 9th sternum bears a short unjointed anal stylus, which are absent in females.