Concept explainers
a.
To analyze: The race of an individual based on the given hair type.
Introduction: Some hair have two layers that is cortex and cuticle however some hair also have a innermost layer that runs as a central canal through the hair shaft and is known as medulla.
b.
To analyze: The race of an individual based on the given hair type.
Introduction: The hairs of animals is thicker than human as they protect the outer surface of body from injuries and also keep the animal warm. Sometimes the hairs are modified into horns, nails, hoofs, and claws.
c.
To analyze: The race of an individual based on the given hair type.
Introduction: The diameter of the hair shaft is larger than the diameter of the hair medulla. This difference is defined as the medullary index.
d.
To analyze: The race of an individual based on the given hair type.
Introduction: Hairs are the appendages that are present in mammals. The shaft of hair is made up of three layers: outer cuticle, cortex, and medulla.
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