Answer:
The menstrual cycle starts with the first day of the period and ends when the next period begins
Hormone signals are sent back and forth between the brain and the ovaries, causing changes to the sacs in the ovaries that contain eggs (follicles) and the uterus
The first part of the cycle prepares an egg to be released from the ovary and builds the lining of the uterus
The second part of the cycle prepares the uterus and body to accept a fertilized egg, or to start the next cycle if pregnancy doesn’t happen
Explanation:
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