Oxygen moves from the alveoli in the lungs into the bloodstream through the process of
(a) active transport.
(b)endocytosis.
(c) diffusion.
(d)exocytosis.
Aside from Calories, what else do you need to obtain through your diet?
(a) a complete protein
(b) a complete carbohydrate
(c) vitamins and minerals
(d) both a complete protein and vitamins and minerals
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