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The substance that is necessary for production of certain hormones and helps store and transport vitamins is: Proteins.
Added 7/21/2015 1:31:27 PM
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Flagged by
Andrew. [7/21/2015 7:39:11 PM]
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The main food source for energy comes from: Carbohydrates.
Added 7/21/2015 1:33:37 PM
This answer has been confirmed as correct and helpful.
Confirmed by
Andrew. [7/21/2015 7:40:11 PM]
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The substance that is necessary for production of certain hormones and helps store and transport vitamins is fats.
Added 7/21/2015 7:39:08 PM
This answer has been confirmed as correct and helpful.