Who said that organisms develop from pre-existing organisms?
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Aristotle
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Louis Pasteur
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Oparin
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Morgan
B
Correct answer
Explanation
Louis Pasteur demonstrated through his swan-neck flask experiments that life arises only from pre-existing life (biogenesis), definitively disproving the theory of spontaneous generation. His work established that microorganisms come from existing microorganisms, not from non-living matter.