Question

(ii) How will you identify male or female cockroach?​

Answer 1

Answer:

WE CAN IDENTIFY BY-:

1. The body of male cockroach is smaller than the female.

2. The abdomen of male cockroach is slender and the last segment of the abdomen is pointed.

3. The wings of male cockroach are larger than that of the females and extend beyond the abdomen.

4. The antennae of male cockroach are smaller than that of the females.

5. In the 9th sternum of abdomen a pair of small, un-jointed anal styles and in the 10th tergum of abdomen a pair of long, palp-like jointed anal cerci are present.

6. The sternum of mesothorax is not bifurcated.

Answer 2

Answer:

(i) The body of male cockroch is smaller thasn a female cockroch .

(ii) The abdomen of male cockroch is slender.

(iii) The wings of male cockroch are larger than of the females.