Exercising on a bicycle or treadmill during a stress test stresses the heart and requires more ________ for the heart muscle cells

a. helium
b. hydrogen
c. carbon dioxide
d. oxygen

d

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________ reflexes respond to changes in blood pressure

A) Arterial B) Baroreceptor C) Chemoreceptor D) Venous

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The official name of a drug is the:

A) chemical name. B) generic name. C) brand name. D) both B and C.

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