Question

Explain why there is no menstrual cycle before puberty, after menopause and during pregnancy.

Answer 1

Answer:

There is no menstrual cycle

1. before puberty because the adolesence age is not yet began.The girl is not ready to bear their child.
2. after menopause because ,it takes efforts to give child birth and the women looses their energy for it.They cannot bear their child at that age.
3. during pregnency because,there is that layer gets removed during pregnency ,that layer during pregnancy is carring baby.

Answer 2

★Before puberty and during development, the secretion of oestrogen and progesterone are not secreted.

★So it does not form ovary.

★So menstrual does not take place before puberty and during pregnancy.