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(DNA, proteins, etc) DNA similar in related species ex. chimp DNA 99%=Human DNA
English scientist who discovered how the process of evolution works. Was a naturalist for H.M.S. Beagle (5 years, around the world). Made many observations especially in the Galapagos Islands
noticed that finches on different islands had different adaptations to different environment
process by which organisms with favorable traits survive and reproduce at a higher rate than organisms without the favorable trait. The environment determines what is favorable
struggle to survive
competition; not enough resources (food, water, mates, space,etc) for all members of a population
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