Biological Anthropology and Human Variation

Consider the statement, "Human Variation is central to the study of Biological Anthropology."

Then answer the following questions in your posting:

(1) Why is human variation important to the study of biological anthropology? Provide 2 specific examples we learned this semester to show why human variation is an important concept for biological anthropology.

(2) Why is variation critical for processes of natural selection and evolution? Can these processes occur if all humans were phenotypically the same?