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What is the outermost layer of hair?

Which part of the living portion of the hair is defined as the structure in the skin or scalp that surrounds the hair root and anchors the hair in the skin?

Water heats and cools more slowly than the land.  Being located close to a large body of water such as the ocean can moderature the variation in temperature.

The three different types of side bonds that link chains of amino acids together are _____.

Which portion of the hair root structure supplies nutrients so that the hair can grow?

Weather is the state of the atmosphere in a given place at a given time.  Climate describe the long-term weather conditions.

Which of the following can be a cause of dry hair and dry scalp?

Each of the following is one of the main types of body hair EXCEPT ______.

Each of the following is a layer of the hair shaft structure EXCEPT ______.

What are the two parts of a strand of human hair?