Human beings belong to the same species and while it

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Unformatted text preview: ic regions, stocky body builds are more common, and these traits may help to conserve heat. Also, tightly curled head hair and darker skin may provide more protection against direct sunlight, while long, straight hair may provide more warmth and lighter skin may be less susceptible to frostbite. Although it seems probable that regional physical characteristics are the results of adaptation to different geographical environments, efforts to explain the present distribution of physical traits on this basis are still speculative and rigorously debated. Problems with Classification by Race There are several significant problems with classifying individuals into races. Individuals Have Many Common Ancestors Although races are defined as persons with the same pool of ancestors, no individuals have precisely the same ancestors except for brothers and sisters. Each of us...
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