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6. (TCO 9)  Joseph plays basketball for his high school team and he is concerned that he is not consuming enough kilocalories to support his activity. Which of the following would be the best indicator that he is not consuming adequate kilocalories? (Points : 2)       
      
      
      

      
      
      
      
      
      

      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      . (TCO 8)  Which of the following do sodium and potassium NOT have in common? (Points : 2)