Puberty

Q. At puberty, a diet rich in proteins is essential for

1. Supplying sufficient heat energy
2. The formation of new cells for growth
3. Protection from diseases
4. The formation of strong bones and teeth

Q.

Complete the following sentences by writing the correct words.
________ marks the beginning and attainment of sexual maturity.

Q.

What change(s) take(s) place in the body after puberty?

1. XY

2. XX

3. YY

4. XYY