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Abiogenesis is the natural process by which life arises from non-living matter, such as simple organic compounds. The prevailing scientific hypothesis is ...
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Spontaneous generation is a superseded scientific theory that held that living creatures could arise from nonliving matter and that such processes were ...
Most experts agree that all life today evolved by common descent from a single primitive lifeform. It is not known how this early life form evolved, ...
A scenario is a set of related concepts pertinent to the origin of life (abiogenesis), such as the iron-sulfur world. Many alternative abiogenesis scenarios ...