Question

Which statement regarding anal cerci and anal style in cockroach is correct?

• A. Anal cerci are absent but anal styles are present in male.
• B. Anal cerci are absent and anal styles are present in female.
• C. Anal styles are absent and anal cerci are present in male.
• D. Anal styles are absent and anal cerci are present in female.

Answer 1

Answer: (D)

In cockroaches, males bear a pair of short, thread like anal styles which are absent in females. In both sexes, the $10^{th}$ segment bears a pair of jointed filamentous structures called anal cerci