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Origins of Life Evolution
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Evolution Gradual development… simple to complex BIOLOGICALLY SPEAKING
Descent with modification Changes in frequency from population to population Different species from common ancestors
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Chemical Evolution The formation of complex organic molecules
from simpler inorganic molecules chemical reactions in the oceans during the early history of the Earth first step in the development of life on this planet. period of chemical evolution lasted less than a billion years.
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Organic Evolution Organic evolution involves modifications to existing species not the development of new ones. life descended from other life
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Miller - Urey Experiment
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Spontaneous Generation
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Redi
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Needham
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Spallanzani
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Pasteur
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Survival of the fittest
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Natural Selection
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Malthus
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Wallace
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Lyell
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Influences on Darwin
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Lamarck
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