you have your period.
Menopause
hon it can change every cycle
Yes, a womans cycle is calculated from the first day of her period
Oxygen
The purpose of the female mentrual cycle is to eliminate an unfertilized egg and the uterine lining.
condensation happens during the water cycle
An unfertilized egg is an egg that has not met with sperm to create a zygote. If an egg is not fertilised then it is reabsorbed into the body and a female then goes on to menstruate.
The host cell is destroyed.
th egg matures
Rocks change form
Justin Bieber!
Nuclear division