Air leaving human lungs during exhalation contains
A) no oxygen.
B) mostly carbon dioxide and carbon monoxide.
C) no carbon dioxide.
D) carbon dioxide and unused oxygen.
Correct Answer:
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Q4: One advantage of gas exchange in water
Q5: The maximum amount of air that a
Q6: Why do cigarette smokers cough more than
Q7: A waste product of respiration is
A)electrons.
B)glucose.
C)carbon dioxide.
D)hydrogen
Q8: Most CO2 is transported to the lungs
Q10: Cigarette smoke can affect the white blood
Q11: During gas exchange,body cells
A)take up CO2 from
Q12: The oxygen- carrying component in red blood
Q13: Within the lungs,gas exchange occurs across
A)bronchi.
B)alveoli.
C)bronchioles.
D)diaphragms.
Q14: Which of the following is a function
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