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  • Biology
    • Diet
      • 1.Carbohydrates = Energy. 2.Fats & oils = storage and insulation   3.Proteins = growth & repair
      • There are only about 20 different naturally-occurring amino acids. However, each protein molecule has hundreds, or even thousands, of them joined together in a unique sequence and folded into the correct shape. This gives each protein its own individual properties
    • Eye
      • Parts
        • what they do
    • Placebo
      • In clinical trials, one group of volunteers - called the test group - receives the new drug. Another group - the control group - receives the existing drug for that illness. If there is no existing treatment, the control group is given a placebo. The researchers look for differences between the test group and the control group.


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