Onset of menstrual cycle in female anthropoid primates is known as
A
Puberty
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B
Menarche
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C
Menopause
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D
Menstruation
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Solution
The correct option is B Menarche Menstruation starts at puberty which is known as menarche. It is the shredding of endometrial lining, ovum and some blood vessels. It ends at the age of 45 to 50 which is known as menopause. It is a cyclic process which happens every month. It includes the menstrual phase, the follicular phase, the ovulatory phase, and the luteal phase. Ovulatory phase happens because of a sudden release of LH hormone.