In the $28$ day human ovarian cycle, the ovulation takes place typically on
Day $1$ of the cycle
Day $5$ of the cycle
Day $14$ of the cycle
Day $28$ of the cycle
Menstrual cycle occurs in
A temporaryendocrine gland in the human body is
The placenta helps in the maintenance of pregnancy by secreting a hormone, known as
Assertion : Corpus luteum degenerates in the absence of fertilization.
Reason : Progesterone level decreases.
Which of the following is false for progesterone ?