Which of the following secondary sex characteristics do not develop during the teen years
The following secondary sex characteristics do not typically develop during the teen years:
1. Facial hair growth in males: While some boys may start to develop slight facial hair during their teenage years, the majority of beard growth occurs during and after puberty.
2. Breast development in females: Female breasts generally begin to develop during puberty, which usually occurs between the ages of 8 and 13. By the time girls reach their late teenage years, breast development is usually near completion.
3. Deepening of voice in males: The voice of boys tends to deepen significantly during and after puberty, which typically occurs between the ages of 9 and 16. While some voice changes may occur during the teenage years, the full deepening of the voice often happens later in late adolescence or early adulthood.
It's important to note that the timing and extent of these secondary sex characteristics can vary among individuals, and some individuals may experience these changes earlier or later than others.