Question

Study the graph given below that represents the changes in the thickening of the uterine wall in women ‘X’ and women ‘Y’ over a period of one month: \textit{(Refer to the provided graph.)}
What does the graph with respect to woman ‘X’ and woman ‘Y’ indicate? Give a suitable reason.

Hint:

The uterine wall thickens during the menstrual cycle in preparation for pregnancy and sheds if fertilization does not occur.

Answer 1

The graph shows: In woman ‘X,’ the uterine wall continues to thicken after ovulation, indicating successful implantation and pregnancy. In woman ‘Y,’ the uterine wall thickness reduces after ovulation, indicating no fertilization, leading to menstruation.