(A) In cockroaches,the $9^{th}$ abdominal segment in males bears a pair of short,thread-like anal styles,which are absent in females. Anal cerci are p

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(A) In cockroaches,the $9^{th}$ abdominal segment in males bears a pair of short,thread-like anal styles,which are absent in females. Anal cerci are present in both sexes. Tarsus is a part of the leg and is present in both sexes. Mouth parts are present in both sexes for feeding.