During an experiment, readings for blood pressure in a person’s body were found to be constant. However, when measured by a different blood pressure cuff, the readings differed by 15 points for each reading. This difference indicates that the results are but not
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independent reliable valid

it would be c. xylem.

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.

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