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Water vapor exits and co2 enters a leaf through the
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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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Which organ controls breathing? lungs alveoli heart diaphragm
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Water vapor exits and co2 enters a leaf through the...
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