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Biology, 22.06.2019 05:50
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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Biology, 22.06.2019 13:30
Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil
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Explain the path that food takes through the digestive system in your body....
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