Question

multiple choice question
which constitutes about 12 to 15 percent of the bodys mass?

carbohydrate
water
fat
protein

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Explanation:

To determine which constitutes 12 - 15% of body mass, we analyze each option:

• Carbohydrate: Usually a small percentage (much less than 12 - 15%) of body mass.
• Water: Makes up about 50 - 70% of body mass, not 12 - 15%.
• Fat: Percentage varies, but typical fat mass is not 12 - 15% for most adults (it can be higher or lower, but this range is not typical for fat).
• Protein: Accounts for approximately 12 - 15% of the body's mass, as proteins are essential structural and functional components (e.g., muscle, enzymes, etc.).

Answer:

D. Protein