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Date: 2011-06-15 17:42:18Astrobiology Geomicrobiology Arsenic Chemical elements GFAJ-1 Felisa Wolfe-Simon Arsenate DNA Extraterrestrial life Microbiology Biology Chemistry | Add to Reading ListSource URL: www.cricketmag.comDownload Document from Source WebsiteFile Size: 1,35 MBShare Document on Facebook |