Q. Identify the external character which differentiates between a female and a male cockroach.
NTA AbhyasNTA Abhyas 2020
Solution:
Male cockroach has anal styles that are absent in females.
The difference between male and female cockroaches are explained below.
Male Cockroach
Female Cockroach
A male cockroach is smaller in size A female cockroach is larger in size compared to a male cockroach The abdomen of the male cockroach is slender The abdomen of the female cockroach is boat-shaped and blunt. The wings of the male cockroach are larger. The wings of the female cockroach are smaller. The antennae of male cockroaches are smaller than that of the females. The antennae are relatively larger than that of the males. The male reproductive system consists of a pair of testes present in the 4th and 6th segments of the abdomen laterally The female reproductive system consists of two ovaries in the 2nd and 6th segment of the abdomen.
The difference between male and female cockroaches are explained below.
| Male Cockroach | Female Cockroach |
| A male cockroach is smaller in size | A female cockroach is larger in size compared to a male cockroach |
| The abdomen of the male cockroach is slender | The abdomen of the female cockroach is boat-shaped and blunt. |
| The wings of the male cockroach are larger. | The wings of the female cockroach are smaller. |
| The antennae of male cockroaches are smaller than that of the females. | The antennae are relatively larger than that of the males. |
| The male reproductive system consists of a pair of testes present in the 4th and 6th segments of the abdomen laterally | The female reproductive system consists of two ovaries in the 2nd and 6th segment of the abdomen. |