How much vitamin D supplement should all breast-fed infants receive daily?
a. 200 IU
b. 400 IU
c. 600 IU
d. 800 IU
Question 2
Which hormone stimulates the breakdown of glycogen in the liver and the release of glucose into the blood?
a. Insulin
b. Glucagon
c. Cortisol
d. Epinephrine