Question

What change in the voice of body takes place when they reach puberty? What is the cause of this change?

Answer 1

when we reach at the age of 13 our puberty age starts to begin.the reason for the changes in our body voice and everything is the reason that of puberty .

Answer 2

Secondary sexual characteristics

Explanation:

Secondary sexual characteristics are the physical changes which develop at puberty and help in distinguishing between boys and girls. Testosterone is the male sex hormone responsible for masculine secondary sexual characteristics as well as the promotion of muscle growth. Estrogen is the reproductive hormone in females that assists in development of secondary sexual characteristics of females like breast development, flaring of the hips, etc.

Changes observed in a boy are :

1. Growth in size of reproductive organs such as penis, scrotum and testicles.
2. Growth of facial and pubic hair.
3. Deepening of voice.
4. Mood swings.

Changes observed in a girl are :

1. Growth of breasts.
2. Growth of pubic hair
3. Emotional changes and mood swings
4. Onset of menstruation.