Changes Occurs in Girls and Boys during Adolescence | Humans | Biology
In this article we will discuss about the physical changes that occurs in boys and girls during adolescence. Physical Changes in Girls: 1. Development of breasts. 2. Pubic hair is often the second major physical change of puberty. 3. The first menstrual event is referred to as menarche. The average age of menarche in girls is about 12-13 years. 4. [...]