<span>True, the average menstrual cycle does indeed last around 28 days. This varies between women, however, and can range from between 21 and 35 days after puberty. The menstrual cycle is controlled by fluctuating hormones in the female body.</span>
Yes but the hours are restricted and monitored
I want say it is b ultrasound machine
hope this helped:)
Bones are to support our body and to protect internal organs.