Biology, asked by rockman968, 1 year ago

the shedding of the lining if the uterus along with some blood once a month.Also called a monthly period

Answers

Answered by STGYO
1
In females, ovaries release ovum or egg once every 28 days. The uterus prepares itself every month to receive a fertilised egg. Thus, it's lining becomes thick and spongy. If the egg is not fertilised, It lives for a day. Afterwards this lining of uterus is no longer required and menstruation oocurs. Menstruation is the time of uterine bleeding in which an unfertilized egg and the thick uterine lining. It occurs through the vagina as blood and mucus. Menstruation lasts for about 2-8 days.
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