When pregnancy does not occur, the life of corpus luteum is about
$10$ days
$14$ days
$28$ days
Corpus luteum is not found
In the $28$ day human ovarian cycle, the ovulation takes place typically on
Assertion : Corpus luteum degenerates in the absence of fertilization.
Reason : Progesterone level decreases.
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
Menstrual cycle is controlled by