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A client reports spending "only $100" a week on alcohol, but becomes indignant when you report that this is over $5,000 a year for alcohol.This is an example of
Keratin
A type of protein found in hair, nails, and skin, providing strength and protection.
Chemical Composition
The identification and quantification of the chemical elements and compounds that make up a specific material or substance.
Cell Walls
Rigid layers surrounding some types of cells, providing structural support and protection while allowing interactions with the environment.
Stains
Substances used to mark or color materials (in a biological context, often used to highlight structures in microscopy).
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