the walls of the xylem vessels are thickened by ……
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Other quiz: Heart
If a person’s heart is pumping 5000 mL of blood in one minute and the heart rate is 50 beats per minute, what is the cardiac output?
A. 250,000 mL/min
B. 25,000 mL/min
C. 100 mL/min
D. 1000 mL/min
E. None of these are correct.