Discuss two changes that occur in both male and female body at the onset of puberty.

Explanation

### Step-by-Step Solution:

1. **Understanding Puberty**: Puberty is the stage of development when a child's body begins to develop into an adult body capable of sexual reproduction. This process involves various physical changes in both males and females.

2. **Identifying Changes in Males**:
- One significant change in males during puberty is the broadening of shoulders. This is due to the increase in muscle mass and bone growth, which gives males a more muscular and defined upper body.
- Another change is the growth of muscles throughout the body. Males typically experience a significant increase in muscle mass compared to females during puberty.

...