Question

a) What is menstruation?
b) When in the menstrual cycle does menstruation
happen?​

Answer 1

Explanation:

mensuration mains 13 to 19 years was done

Answer 2

Answer:

mensuration is a periodic cycle start at 12 -13 age in womens . depend on enviremental condition.

B)  normaly at 14th day of menstrual cycle mensuration occur or ovum released. 4    

harmones are responsible.

Explanation: