What is life?
All that science can do is to look into processes which, apparently first began to operate four billion years ago before any scientists were present to observe or comment. These processes fall into three categories--energetics, chemistry and life. Energetics and chemistry have been documented but what about life.
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Barlow
D001695:Biology; D055598:Chemical Phenomena; D002621:Chemistry; D004734:Energy Metabolism; D005057:Eukaryotic Cells / Q000737:chemistry; D006801:Humans; D009747:Nutritional Physiological Phenomena; D055585:Physical Phenomena; D010825:Physics; D011387:Prokaryotic Cells / Q000737:chemistry