Seconday sexual characters are the features that help in distinguishing the male and the female from each other. They are the physical or the behavioral characteristics that appear in humans at the time of puberty. (1 mark)
Some of the secondary sexual characters are:
-Appearance of moustache and beard in boys. (0.5 marks)
-Appearance of chest hair in boys. (0.5 marks)
-Growth of hair in the genital area and other parts of the body in both boys and girls. (0.5 marks)
-Increase in breast size in girls. (0.5 marks)