which causes a drop in female hormone levels?\no the onset of the menstrual flow\no the release of an egg…

which causes a drop in female hormone levels?\no the onset of the menstrual flow\no the release of an egg from the ovary\no the thickening of the uterine wall\no the failure of an egg to be fertilized

which causes a drop in female hormone levels?\no the onset of the menstrual flow\no the release of an egg from the ovary\no the thickening of the uterine wall\no the failure of an egg to be fertilized

Answer

Brief Explanations:

When an egg is not fertilized, the corpus luteum (which produces female hormones like progesterone and estrogen) degenerates. This leads to a drop in female hormone levels, triggering the onset of menstruation. The onset of menstrual flow is a result of the drop in hormones, not the cause. Egg - release (ovulation) is associated with a hormonal shift but not a drop in overall female hormone levels. Uterine wall thickening is due to rising hormone levels in the first part of the menstrual cycle.

Answer:

the failure of an egg to be fertilized