Question

how do nutritional needs change over time?
the number of calories needed increases throughout a persons lifetime.
the number of calories needed increases from infancy to young adulthood.
the number of calories needed increases from young adulthood until old age.
the number of calories needed remains the same from young adulthood throughout old age.

Explanation:

During infancy, the body is growing rapidly and needs more calories for development. As a person matures into young adulthood, growth slows down and calorie - needs level off. From young adulthood to old age, metabolic rate generally decreases and calorie needs often decline. So, the number of calories needed increases from infancy to young adulthood.

Answer:

The number of calories needed increases from infancy to young adulthood.