30. The hemoglobin molecule (A) contains 4 heme compounds. (B) carries oxygen from the lungs to the tissues. (C) decreases during iron deficiency anemia. (D) All of these choices are accurate.

3. If a total of 2000 kcal were consumed (250 grams of carbohydrates, 66 grams of fat, and 102 grams of protein), what percentage of energy comes from carbohydrates, fat, and protein? (A) 30% carbohydrate, 50% fat, and 20% protein (B) 50% carbohydrate, 35% fat, and 15% protein (C) 20% carbohydrate, 30% fat, and 50% protein (D) 50% carbohydrate, 30% fat, and 20% protein

30. The hemoglobin molecule
(A) contains 4 heme compounds.
(B) carries oxygen from the lungs to the tissues.
(C) decreases during iron deficiency anemia.
(D) All of these choices are accurate.

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