BIOL 113 Lecture Notes - Lecture 20: Vitamin, Folate Deficiency, Spina Bifida
Document Summary
Homo sapiens all humans are the same speciers. Evolution of skin color melanin a pigment produced by melanocytes in the epidermis. Skin tone correlates with geography; relative to the earth"s poles. Classes of pigmentation constitutive skin color and facultative(inducible) skin color. Types of melanin eumelanin (brownish pigments) and pheomelanin (reddish pigment) Skin color largely based on vitamins: folate b vitamin. Ardipithecus ramidus small brain and some bones show walking upright. Australopithecus could walk upright, lived on ground, and made tools. Homo sapiens walk upright and large brain.
