Given below is a diagrammatic representation of female reproductive system of frog labelled A, B, C

The terga, sterna and pleura of cockroach body are joined by

Given below is the diagram of reproductive system of an animal labelled by (i), (ii), (iii) and (iv)

Which type of respiration is present in frog during swimming ?

Identify A, B, C, D and E in a given figure related with mouth parts of the cockroach :

Read the following statements carefully about cockroach-Statement-I : In male cockroach, a character