Question

Which part of the male cockroach absent in female cockroach or present only in male cockroach?​

Answer 1

Answer:

Male cockroach Female cockroach

Abdomen in male cockroach is thin and slender. Abdomen in female cockroach is thick and broad.

A pair of anal styles and a pair of anal cerci are present. Anal styles are absent and only a pair of anal cerci is present.

Genital pouch is covered dorsally by 9th and 10th terga and ventrally by the 9th sternum. 7th sternum is boat shaped and together with the 8th and 9th sterna forms a genital pouch.

Genital pouch contains dorsal anus, ventral male genital pore and gonapophysis. Anterior part of the genital pouch contains female gonopore, spermathecal pores and collateral glands.

Terminal portion of the abdomen pointed. Terminal portion of the abdomen rounded.

Difference between male and female cockroach are:

Explanation:

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Answer 2

Male cockroach

Abdomen in male cockroach is thin and slender.

A pair of anal styles and a pair of anal cerci are present

Female cockroach

Abdomen in female cockroach is thick and broad.

Anal styles are absent and only a pair of anal cerci is present