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    Vitamins and Minerals MaryC864

    Where can I find info on vitamins and minerals in the sections on here?

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      questions (a) what is digestive system? (b) why is digestion necessary .

      2 exp ? the term peristalsis & what effects

      3 out line the physical & chemical digestion of food in the stomah

      4 why does the stomach have the following

      (a) ph of 1_2

      (b) lining layer of mucus

      (c) enzyme pepsin

      (c) thick muscle wall?

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