Origins of Life Evolution

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Presentation transcript:

Origins of Life Evolution

Evolution Gradual development… simple to complex BIOLOGICALLY SPEAKING Descent with modification Changes in frequency from population to population Different species from common ancestors

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.

Organic Evolution Organic evolution involves modifications to existing species not the development of new ones.  life descended from other life

Miller - Urey Experiment

Spontaneous Generation

Redi

Needham

Spallanzani

Pasteur

Survival of the fittest

Natural Selection

Malthus

Wallace

Lyell

Influences on Darwin

Lamarck

https://www.youtube.com/watch?v=V8KIvICfGEM

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