What is puberty ? Who attains puberty at an earlier age in human beings : male or female (boy or girl) ?
(a) The age at which boy and girl become sexually mature and able to reproduce is called puberty. Females attain puberty at an age of 10-12 years.
(b) Functions of testes: (i) To produce sex cells called sperms.
(ii) To produce sex hormone called testosterone.