Study the diagram given below and then answer the questions that follow :

(i) Name the part labelled A. Name any two hormones produced by the part labelled A.
(ii) What happens to the part labelled B if :
(1) fertilisation takes place?
(2) fertilisation does not take place ?
(iii) Where does fertilisation occur ?
(iv) Draw a neat diagram of the human sperm as seen under high magnification and label the following parts: (a) Acrosome (b) Mitochondria.

Explanation

(1) If the fertilization takes place, uterus gets prepared to receive the embryo. The uterine lining becomes thick. The blastocyst gets implanted in the endometrial linning and there is no menstrual discharge. (2) If there is no fertilization, uterine lining is shed off with blood flow.