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Biology 9 Online
OpenStudy (darrenmadx):

Which of the following is true about blood pressure? A. Artery walls help to maintain pressure, even between heart beats. B. It falls when the heart contracts. C. Diastolic pressure is higher than systolic pressure. D. It is not affected by atherosclerosis.

OpenStudy (darrenmadx):

Hey @Missiey can you please help me?

OpenStudy (anonymous):

a

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