3 years ago

1.) Why does menstruation begin?2.) How long does the menstrual cycle usually last?

Biology

1 answer:

skelet666 [1.2K]3 years ago

8 0

Answer:

1.) Why does menstruation begin?

A.) Period happens because of changes in hormones in the body.

2.) How long does the menstrual cycle usually last?

A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days

<u>-TheUnknownScientist</u>

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1.) Why does menstruation begin?2.) How long does the menstrual cycle usually last?​

1.) Why does menstruation begin?2.) How long does the menstrual cycle usually last?