Usualy somewhere between 11 and 15.
endocrine
Yes
the Endocine system.
It is important to know the roles of each system in the body. The reproductive and the endocrine system is the cause of the onset of the menstrual cycle.
Hormones are responsible for the onset of menses. When the body produces enough hormones, the menstrual cycle begins.
The temperature on the moons of Jupiter have very little effect on the female menstrual cycle.
Menarche
The menstrual cycle.
The menstrual cycle is the reproductive cycle, this is when a female would conceive - I think you mean two days after her period. Yes, a female can conceive two days after her period if her cycle is short.
purberty for girls around whenever they're in 6th grade
Average menstrual cycle can mean one of two things:The typical menstrual cycle across all female humans: 28 days.The individuals average menstrual cycle, unique to them.
It's called the menstrual cycle.