Which of the following labelled parts of the circulatory system has the highest
concentration of oxygen?
A. P and Q
B. Q and S
C. R and P
D. S and R
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0
Answer:P and Q
Explanation:
Answered by
1
Answer:
B. Q and S
Explanation:
Q is the pulmonary vein which is carrying the oxygenated blood and S, the aorta also carries oxygenated blood from heart to the body parts. Also P and R carry deoxygenated blood.
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