What is menstruation (period)?

Type: MCQ • Marks: 1

A. Puberty onset

B. Periodic shedding of the uterine lining (endometrium) along with blood when fertilization does not occur

C. Sperm production

D. Implantation of embryo

Explanation

Menstruation occurs monthly in human females if pregnancy is absent.

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Class 9th Science (MCQ)

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