Question

Number of segments in the anal cerci of Cockroach is

• A. 12
• B. 15
• C. 18
• D. 10

Answer 1

The correct option is B 15

The abdomen bears 8 pairs of stigmata, anus and a pair of anal cerci. Anal cerci are developed from the junction between 9th and 1Oth segments on the dorsal side one on each side. The total number of segments present in anal cercus 15. They occur in both male and female cockroaches. They are regarded as the appendages of the vestigial eleventh segment. Therefore the number of segments in the anal cerci of Cockroach is 15.

So the correct answer is '15'.