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Aristotle believed that simple living organism could come into being by spontaneous generation.
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scientist began to see all sort new life forms such as bacteria, yeast, and fungi.
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A Scottish clergyman and naturalist in the name John Needham, showed that mircroorganisms flourished in various that had been exposed the air
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Lazzaro Spallanani, an Italian abbot and biologist, tried several variations on Needham’s soup experiments.
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A French Chemist named Louis Pasteur demonstrated that microorganisms are everywhere and that the spontaneous generation was convincly true.
