Write notes on Secondary sexual characters.
Secondary sexual characters are those features that help in distinguishing the male and the female body from each other. They are physical or behavioural characteristics that appear in humans at the time of puberty.
Secondary sexual characters in boys:
1) Appearance of moustache and beard.
2) Appearance of chest hair.
3) Growth of hair in genital area and other parts of the skin.
Secondary sexual character in girls:
1) Increase in breast size and darkening of the skin of nipples present at the tip of the breasts.
2) Growth of hair in genital area and other body parts.