Question

Give appropriate biological/ technical terms for the following-

It is the beginning of sexual maturity.

Answer 1

1. In human beings, the development of secondary sexual characters begins around the age of 10 years. This is called puberty.
2. Puberty is the beginning of sexual maturity.
3. Puberty is brought about due to the action of hormones like testosterone in males and progesterone and estrogen in females.
4. In males, appearance facial and body hair, deepening of the voice, and an increase in the size of testicles are seen.
5. In females, widening of hips, an increase in the size of breasts, and the onset of menstruation is seen.