Answer:

Doctors are experts on bodies, and their job is to answer your questions about your body and staying healthy. If you don't have a doctor already, you can contact your local Planned Parenthood Health Center.

Explanation:

2.

• Normal growth and development

A child's growth and development can be divided into four periods:

• Infancy
• Preschool years
• Middle childhood years
• Adolescence

Soon after birth, an infant normally loses about 5% to 10% of their birth weight. By about age 2 weeks, an infant should start to gain weight and grow quickly.

By age 4 to 6 months, an infant's weight should be double their birth weight. During the second half of the first year of life, growth is not as rapid. Between ages 1 and 2, a toddler will gain only about 5 pounds (2.2 kilograms). Weight gain will remain at about 5 pounds (2.2 kilograms) per year between ages 2 to 5.

Between ages 2 to 10 years, a child will grow at a steady pace. A final growth spurt begins at the start of puberty, sometime between ages 9 to 15.

The child's nutrient needs correspond with these changes in growth rates. An infant needs more calories in relation to size than a preschooler or school-age child needs. Nutrient needs increase again as a child gets close to adolescence.