Proteins, Help?

Question

Adolescents need more protein in theri diet per unit of body mass than adults. the reason is that adolescents have higher...

A. activity levels than adults

B. metabolic rates than adults

C. requirements for stored energy than adults

D. rates of cell division and growth than adults

???

Answer 1

D

because adolescents are growing and growing in length and they need bigger bones and muscles!  

Whereas adults do not grow in length...usually only grow in muscle or fat.

Answer 2

D) is correct.