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Which of the following statements about the biosphere is NOT true? A The biosphere is a system closed to matter. B Energy enters the biosphere in the form of sunlight. C Nutrients in the biosphere must be continuously recycled. D Matter is constantly added to the biosphere.
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When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated
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Which of the following statements about the biosphere is NOT true? A The biosphere is a system close...
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