Answer: d. Pack/year
A patient's smoking history is represented as a ______/______ history.
a. Pack/day
b. Cigarettes/day
c. Cigarettes/year
d. Pack/year
Anatomy & Physiology
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The placental membrane is composed of
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A) the somatic nervous system. B) the sympathetic nervous system. C) the parasympathetic nervous system. D) both the sympathetic and parasympathetic nervous systems.
Anatomy & Physiology