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What are the formed elements (cell or parts of cell) in blood and what are their functions ?
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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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How do colonial organisms relate to colonies of people or insects?...
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