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Early earth that did not support life in the same fashion it does now.

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q1.The evidence indicates that the early earth that did not support life in the same fashion it does now. Temperatures, different gases and other physical conditions were much more extreme over greater areas than they are today. Organisms that appeared had to be adapted to those conditions, not today?s conditions. Is there evidence that life had evolved to survive in those conditions? Doesn't need to be more than 125 words.;q2.Viruses, prions and viroids are non-living organisms that require a living cellular host in order to reproduce. They cannot do it on their own. These parasites may be just a string of RNA, as in a viroid, or a length of DNA enclosed in a protein shell, as in a virus.;Is it possible that these parasites may be links to the earliest days of the beginning of life on this planet? Explain why you think this may be true or is false. Doesn't need to be more than 125 words.

 

Paper#15113 | Written in 18-Jul-2015

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