Biology
Biology, 06.05.2021 19:20, JKJKJKJKGFGH7470

The periodic shedding of the uterine lining usually takes place -- O after menopause
O during pregnancy
O if fertilization does not occur
O before puberty begins​

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The periodic shedding of the uterine lining usually takes place -- O after menopause
O durin...

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