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The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes
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Explain how scientists use geologic time to determine the age of landforms.
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What is the effect of molecule size on a moleculeās ability to diffuse across a semipermeable membra...
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