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Primordial soup, also known as prebiotic soup, is the hypothetical set of conditions present on the Earth around 3.7 to 4.0 billion years ago. It is an aspect of the heterotrophic theory (also known as the Oparin–Haldane hypothesis) concerning the origin of life, first proposed by Alexander Oparin in 1924, and J. B. S. Haldane in 1929.
Since then, the primordial soup theory (Oparin–Haldane hypothesis) has become the foundation in the study of abiogenesis. [88] [89] [90] Although Oparin's theory became widely known only after the English version in 1936, Haldane accepted Oparin's originality and said, "I have very little doubt that Professor Oparin has the priority over me ...
Robert Shapiro has summarized the "primordial soup" theory of Oparin and Haldane in its "mature form" as follows: [32] The early Earth had a chemically reducing atmosphere. This atmosphere, exposed to energy in various forms, produced simple organic compounds ("monomers").
The PAH world hypothesis is a speculative hypothesis that proposes that polycyclic aromatic hydrocarbons (PAHs), known to be abundant in the universe, [177] [178] [179] including in comets, [180] and assumed to be abundant in the primordial soup of the early Earth, played a major role in the origin of life by mediating the synthesis of RNA ...
[1] [2] This idea is related to later work such as the Oparin-Haldane hypothesis and the Miller–Urey experiment, which respectively provided a hypothesis for life’s origin from a primordial soup of organics [3] and a proof of concept for the mechanism by which biomolecules and their precursors may have formed. [4]
Charles Darwin was probably right when he suggested all life on Earth started in a “primordial soup.” Scientists continue to find evidence of the theory.
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
Minestrone soup may be the star of the show, but the sourdough bread and red wine shouldn't be ignored. "Sourdough has a lower glycemic index than other forms of bread because of the acid in the ...