Wednesday, July 29, 2009

Why do humans differ physically from different parts of the world?

Middle East: Hairy, Unibrows



Asian: Light Skin, Eyes More Squinted



African: Dark Skin, Little Hair



South America: Short Stature



ETC......



Why do humans differ physically from different parts of the world?

Environmental factors take Asians for example you say their eyes are often squinted, they have adapted to different climates, wind for example, you would need to protect your eyes and they have adapted to do this, then their genes are passed on to their offspring

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