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Trichoptilosis is the technical term for:

The three different types of side bonds are:

The melanin that provides brown or black color to hair is:

There are 60 naturally occurring elements, each with its own distinct physical and chemical properties.

Rapid and interrupted current that flows in one direction and then in the opposite direction is:

The fibrous protein core formed by elongated cells that contains melanin pigment is the:

Which of the following terms is used to describe hair’s wave pattern?

The special device that prevents excessive current from passing through a circuit is a(n):

There are two types of electric current: direct and converted.

Cold cream is an example of an oil-in-water emulsion of two immiscible liquids.