Question

after how many days does the corpus luteum die if fertilization fails to occur? 0 days 5 days 14 days 15 days 25 days

Explanation:

The corpus luteum is a temporary endocrine structure in female ovaries. If fertilization does not occur, it degenerates. In a typical menstrual cycle, the corpus luteum has a lifespan of about 14 days. After this period, if there is no fertilization - induced hormonal support (such as hCG from a developing embryo), it starts to die.

Answer:

14 days