The figure given below illustrates the changes taking place during the human menstruation cycle

Identify hormones $A, B, C, D$ and $E$ from the figures

In the boxes shown in the figure write the name of the hormone (or hormones) controlling the stage in the human menstrual cycle

The term blastocyst is applied to the blastula of which one of the following

Sperms are released from the seminiferous tubules by the process called …..

The chemical fertilizer is present in

The shock absorber fluid of the developing embryo is known as