Lack of menstruation is caused due to
Stress
Poor health
Pregnancy
All correct
Ovulation in mammals is caused by
Transformation of a young follicle into graafian follicle is controlled by
The rupture of the graafian follicle and the release of ovum occurs under the influence of
The main function of mammalian corpus luteum is to produce
Ovulation does not occur during pregnancy in the human female because