Arcaico: Diferenzas entre revisións

Life was probably present throughout the Archean, but may have been limited to simple non-nucleated single-celled organisms, called [[Prokaryota]] (formerly known as Monera). There are no known [[eukaryote|eukaryotic]] fossils, though they might have evolved during the Archean without leaving any fossils.<ref>Stanley, pp. 306, 323</ref> No fossil evidence yet exists for ultramicroscopic intracellular replicators such as [[viruses]].

 

 

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