Question

question 16 4 pts during the middle and late childhood years, children gain about 5 to 7 pounds a year. the weight increase is due mainly to increases in the size of the skeletal and muscular systems. head circumference. waist circumference. total volume of baby fat.

Explanation:

During middle and late childhood, growth in skeletal and muscular systems contributes to weight gain. Head circumference growth slows, waist circumference isn't the main factor, and baby - fat volume decreases.

Answer:

size of the skeletal and muscular systems.