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Life Processes in Animals - Reproduction and Nervous System
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The menstrual cycle prepares the uterus for a mature egg. For how long an average menstrual cycle exists in women?
AnswerClick to flip back
A
28 days
💡 Explanation:
The average menstrual cycle lasts approximately 28 days, though this varies between individuals (typically 21-35 days). Option C correctly states the average. Option B (2 weeks = 14 days) is too short for a complete cycle, and option A (20 days) is below the typical range.