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A human female experiences two major cha...

A human female experiences two major changes menrache and menopause during her life. Mention the significance of both the events.

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### Step-by-Step Solution 1. **Understanding Menarche**: - Menarche is the first occurrence of menstruation in a female, marking the beginning of her reproductive years. It typically occurs between the ages of 9 and 16. - **Significance**: - It signifies the onset of sexual maturity and indicates that the female body is capable of reproduction. - It marks the beginning of the menstrual cycle, which is essential for fertility. ...
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Knowledge Check

  • Assertion: Human beings have two sets of teeth during their life. Reason: Human beings have thecodont dentition.

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