what is manstrul cycle
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The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. The cycle is required for the production of oocytes, and for the preparation of the uterus for pregnancy. The menstrual cycle occurs due to the rise and fall of hormones.
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Female of placental mammals exhibit cyclical changes in the activities of ovaries and assecory ducts as well as hormones during the reproductive phase and it is knwn as menstrual cycle.
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