Question

In which two growth periods of a human being is rapid growth rate observed?

• A. Infancy and adolescence
• B. Adulthood and old age
• C. Infancy and childhood
• D. Adolescence and old age

Answer 1

The correct option is A Infancy and adolescence

During the first year, babies on an average, grow 10 inches (25 centimeters) in length and triple their birth weights. The growth rate slows down gradually and stabilizes till adolescence. A major growth spurt happens at the time of puberty, usually between 8 to 13 years of age in girls and 10 to 15 years in boys. Puberty lasts about 2 to 5 years. This growth spurt is associated with sexual development, which includes the appearance of pubic hair, the growth and development of sex organs, and in girls, the start of menstruation.