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What occurs when the uterine lining breaks down and slowly flows from the
vagina over a period of about three to five days?
A. fertilization B. menstruation C. ovulation D. pregnancy


Sagot :

Answer:

Letter B

Explanation:

The ovaries start to produce hormones around puberty, which causes changes to the lining of the uterus (womb). The period, which is the shedding of the lining, is known as menstruation. For most women, the menstrual period occurs once a month and lasts from three to five days.