BIO 200LLB Lecture Notes - Lecture 4: Selective Breeding, Puffball, Fleeming Jenkin

• School: University at Buffalo
• Department: Biological Sciences
• Course: BIO 200LLB
• Professor: Herreid, C F

Document Summary

Science began to explain things that used to be inexplicable. Earth is not the center of the universe. Many species found that were not mentioned in the bible. Lamarck and darwin argued for evolution and came up with mechanisms which were. Darwin"s hypothesis of evolution by natural selection. If the hypothesis of evolution by natural selection is correct, then variations should exist among domestic organisms. Everyone knew the great variation was due to artificial selection. No one thought a new breed of cattle was due to god the creator. Breeders could not cause variation but they could take advantage of it when it occurred, said darwin. If the hypothesis of evolution by natural selection is correct, then variations should exist among wild populations. If the hypothesis of evolution by natural selection is correct, then more offspring are born than will survive to reproduce. An orchid can produce a million of seeds. A salmon might produce 28 million eggs per season.