Systolic blood pressure describes the blood pressure when
A. the heart is resting between beats
B. the ventricles of the heart are contracting
C. the atria of the heart are filling with blood
D. the atria of the heart are contracting
Answer: B
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What will be an ideal response?
The Environmental Protection Agency considers this city to have the worst ozone pollution
A) Los Angeles B) Chicago C) New York D) Phoenix
Seasons only exist in highlands if they also exist in the nearby lowlands
Indicate whether the statement is true or false
Tropical climates are typically located
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