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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
Answers: 2
Biology, 22.06.2019 12:10
Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give
Answers: 1
Match each nutrient to its description
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