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 illustrates the following: In woman X, the uterine wall thickens post-ovulation, signifying successful implantation and pregnancy. In woman Y, the uterine wall thins post-ovulation, indicating lack of fertilization and resulting in menstruation.