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 A long chain of amino acids linked by peptide bonds is called a:  

A weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by changes in pH is a:  

The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as the:

All natural hair color is the result of pigment located in the cortex called:  

Nail wraps are rebalanced with additional resin:

Which of the following is NOT an intrinsic skin-aging factor?

Diagonal lines in a haircut blend long layers into short layers and create:    

One-celled microorganisms with both plant and animal characteristics are:

The nurse charted: “Patient has an open wound located on lateral aspect of leg.” Describe where the wound is located.

The melanin produced by the body that is red to yellow in color is: