Three secondary sexual changes that take place in boys at puberty are as follows.(a) Growth of hair on the face, pubic region and armpits
(b) Deepening of the voice
(c) Enlargement of the penis and the scrotum
(a) What changes take place in boys during puberty?
(b) What changes take place in girls during puberty?
List changes in the body that take place at puberty.
What change in the voice of boys takes place when they reach puberty ? What is the cause of this change ?