Question

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Answer 1

Answer:

a)Menarche is the beginning of the menstrual cycle in females. Menopause is the ending phase of the menstrual cycle in females. Beginning of menarche is approximately between the age group of 11-16 years. Generally, menopause may occur between the age group of 45 - 50 years.

b)oestrogen is involved in repairing and thickening the uterus lining, progesterone maintains the uterine lining.

Explanation:

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Answer 2

Answer:

Menarche is the beginning of the menstrual cycle in females. Menopause is the ending phase of the menstrual cycle in females. Beginning of menarche is approximately between the age group of 11-16 years.

Testosterone and Oestrogen are sex hormones

that are typically considered male or female. They are, however, present in both men and women.