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The chemical composition of normal hair is ____ percent carbon.

A) 10%
B) 25%
C) 50%
D) 75%

User Zkanda
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Final answer:

The chemical composition of normal hair is 50% carbon. Carbon is a major component in the composition of a cell and is necessary for all macromolecules.

Step-by-step explanation:

The chemical composition of normal hair is 50% carbon.

Carbon represents 12 percent of the total dry weight of a typical cell and is a component of all macromolecules.

Carbon is necessary and is a major component in the composition of a cell.

User Piera
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