Question

Why does menstruation only occur if the released ovum is not fertilised? Explain.

Hint:

Menstruation is triggered by the absence of fertilisation, causing hormonal changes that lead to uterine lining shedding.

Answer 1

\begin{itemize} \item If the ovum is not fertilised, the corpus luteum degenerates, reducing progesterone levels. \item This hormonal drop leads to the breakdown and shedding of the uterine lining as menstrual blood. \end{itemize} % Quick tip