To return to the primeval soup, it must have become populated by stable varieties of molecule; stable in that either the individual molecules lasted a long time or they replicated rapidly or they replicated accurately. Evolutionary trends towards these 3 kinds of stability took place in the following sense: if you had sampled the soup at 2 different times, the latter sample would have contained a higher proportion of varieties with high longevity; fecundity; copying-fidelity. IS the following paraplag, Word for word plag or no plag: The "primeval soup...must have become populated by stable varies of molecule" and over time would contain "a higher proportion of varieties with high longevity/fecundity/copying-fidelity" (Dawkins, 1989, p.18).

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