Select your answer:
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Pathophysiology › ViewOne of the byproducts of normal metabolism, that gets removed by exhaling (breathing out) is:
A. oxygen
B. carbon dioxide
C. energy
D. air
Nervous, Musculoskeletal Systems, Integumentary Systems › View
What is the function of nails?
A. To provide energy
B. To help in digestion
C. To protect the fingers and toes
D. To produce keratin