Question

Why Are People Different Colors? Nina Jablonski, a biological rainbow of human skin color." She knew that our closest primate relatives have pale skin under dark fur, but human skin comes in a variety of shades from pinkish white to dark brown. How did this variation arise Many biological traits have been shaped by natural selection, Could human skin color be one such trait? If so, she would have to find the selective pressure that caused different populations to evolve varying levels of skin pigmentation. at Penn State University, spent many hours chinking about 'the sepia You will now meet Nina in a short five-minute video (https://www.hhmi.org/biointeractive/biology-skin-color). She will take you on a journey that she undertook in the pursuit of this question. After you have viewed the video, answer the following five questions. Questions 1. Describe the conditions necessary for evolution by natural sclection to take place in a population. 2. With regard to the evolution of skin color in humans, which of these conditions is Nina sure about (and why) and which one(s) is she investigating? 3. What is Nina's likely hypothesis about the evolution of skin color in humans? 4. How might she test her hypothesis?

Answer 1

Melanin is the reason why people are different colors.