CTD 446 Lecture Notes - Lecture 12: Frostbite, Reconstructive Surgery, Lymph Node
Document Summary
Physical appearance: body supplements and modifications designed in relationship to body and is physical needs. Ready-made garments openings heads, legs, and arms. Children consider feeds and changing ease. Cancer patients adapted to specific use. The type of appearance person wants to project. No population is ever separated long enough from others to evolve into a different species. Speciation occurs when populations are totally separated geographically or behaviorally and the separated population adapt to different environments by natural selection (survival of the fittest) How do we adapt: phenotypes physically apparent characteristics, culture flexible, adaptive to new environments. Rapid development (compare how long genetically engineer fur, to make warm clothing: skin color varies by latitude. Closer to the equator, skin is darker, more protection from uv. Lighter skin further away (theory: vitamin d hypothesis, need lighter skin to absorb what needed in areas with less sunlight intensity or less susceptible to frost bite damage: body build/proportion.