PLZ ASA RN 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

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he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.