Multiple Choice
To increase the output of the heart, what adjustments are made in the circulatory system?
1) an increase in heart rate
2) an increase in stroke volume of the heart
3) a reduced blood flow to the brain
A) only 1
B) only 2
C) only 3
D) 1 and 2
E) 1, 2, and 3
Correct Answer:
Verified
Correct Answer:
Verified
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