A baby holding its breath will
A. be termed a "blue baby".
B. suffer heart damage because of increased pressure in the aorta.
C. have brain cells damaged because of low blood oxygen levels.
D. automatically start to breathe when oxygen levels decrease slightly.
E. automatically start to breathe when the CO2 levels in the blood reach a high enough value.
Answer: E
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Fill in the blank(s) with the appropriate word(s).
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When a person rises quickly from a lying position, there is
A. an increase in vasomotor sympathetic stimulation to the blood vessels causing vasoconstriction. B. reflexive slowing of the heart. C. an increase of parasympathetic stimulation of the heart. D. a decrease in heart rate and stroke volume. E. an increase in the frequency of action potentials produced by the baroreceptors.
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A) Insulin B) Glucagon C) Potassium D) Bicarbonate