For most of the world's population, what is the effect of aging on the activity of lactase?
a. Declines by 30-40 b. Declines by 90-95
c. Increases by 30-40 d. Increases by 90-95
Question 2
Which of the following is known to perform an essential function in the human body?
a. Carnitine b. Orotic acid
c. Methoxantin d. Pangamic acid