what was one of the most important steps in the evolution of early living things

Science
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what was one of the most important steps in the evolution of early living things?

Dec 14th, 2014

The most important step in the evolution was when the first micro organisms evolved that did photosynthesis. They produced the oxygen in the sea and the atmosphere that made all other life possible.

Reference:

http://www.ask.com/answers/338562461/what-was-one-of-the-most-important-steps-in-the-evolution-of-early-living-thing



Dec 14th, 2014

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Dec 14th, 2014
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Dec 14th, 2014
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