Boys don't have babies, girls do. A period is the lining of the uterus after it is no longer needed when a girl doesn't get pregnant.
Girls
In boys, the increase in penis sizes and the increase in testis size is evident. In girls, there is increase in breast size and onset of menstruation.
In girls, the sign is the start of menstruation. In boys its the increase in size of testis.
Yes, monthly menstruation effects hormone levels which can slightly affect a girls mood.
In boys, the increase in the size of testis is important. In girls, the start of menstruation is important.
For Girls it is usually Menstruation, periods begining. For boys it is generally the voice deepening.
because girls care more about life
The onset of menstruation in girls. The increase in the testis size in boys. The growth of hair on pubic regions.
yes we need to so we can get girls if im talking to boys and boys if im talkin to chicks
Menstruation
THE TARGET AUDIENCE IS YOUNG GIRLS. THE BOOKS AND SOFTWARE ALSO APPLY TO BOYS AS WELL
There are about 105 boys born for every 100 girls. But, boys are more frail than girls and less likely to survive, so as the years pass it reverses and there become more females than males