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When we think of respiration, we usually think of inhaling oxygen and
exhaling carbon dioxide. Assuming that all of the CO2 we exhale is waste
from cellular respiration, how does the carbon atom in CO2 enter the body?
A. In a molecule of carbon dioxide
B. In a molecule of water
C. In a molecule of glucose
D. In particulate matter we inhale.
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When we think of respiration, we usually think of inhaling oxygen and
exhaling carbon dioxide. Ass...
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