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Anthropologists have concluded that modern day humans originated from the continent of Africa. Looking at the distribution of skin tones we now see all over the world today explain why this pattern is makes sense for what we see today.

MUST USE AND HIGHLIGHT THE FOLLOWING KEY TERMS: variation, direct sunlight, UV radiation, Vitamin D, folate (folic acid), equator, evolution, parents, offspring, Africa, survival, natural selection, genes, latitude, adapt/adaptation