Write the letter of the correct answer. Choose from the following options:
A. X is true and Y is false.
B. X is false and Y is true.
C. X and Y are both true.
D. X and Y are both false.
1.)
X. Oxygen is taken up in the body during inhalation.
Y. Oxygen is delivered to the tissue by the respiratory system.
2.)
X. Oxygen gas comes from alveolus to capillary.
Y. Carbon dioxide comes from capillary to alveolus.
3.)
X. Blood that flows from the lungs is deoxygenated blood. Y. Blood that flows from the body is oxygenated blood.
4.)
X. The aorta is the main and the biggest artery in the human body.
Y. It carries oxygenated blood away from the heart.
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Answer:
A.X is true and Y is false