CAS AN 102 Lecture Notes - Selective Breeding, Meiosis, Ploidy
16 Feb 2013
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Document Summary
Problems for early scientists trying to explain why things are the way they are in a scientific and not theological sense. Development hypothesis solves a lot of those problems. The parts of all kinds of organisms resemble each other even though they use them for different things. Ecological patterns: adapted to way of life, specific. Taxonomic patterning: based on reproduction (placental vs. marsupial mammals) Common ancestor explains: splitting of the family tree. Someone became extinct in that isolated area (convergent evolution, making the same things for the same jobs) How this all can take place mechanically: charles darwin. Talked to alfred russel wallace came up with the same idea he had been working on for years. Now we had natural selection that makes the general population change slowly based on the better features. Who had the advantage in the struggle for existance. Populations diverged because they adapted to different habitats.
