Forestman Messages 212 Reaction score 2 Thread starter Mar 29, 2009 #1 How long did it take life to form after the oceans had formed?
Andy Resnick Science Advisor Education Advisor Insights Author Messages 7,830 Reaction score 4,173 Mar 30, 2009 #2 Oceans formed about 4 billion years ago: http://serc.carleton.edu/NAGTWorkshops/earlyearth/questions/formation_oceans.html The earliest evidence of life is about the same time: http://rainbow.ldeo.columbia.edu/courses/v1001/7.html So I'd say life started as soon as liquid water was around.
Oceans formed about 4 billion years ago: http://serc.carleton.edu/NAGTWorkshops/earlyearth/questions/formation_oceans.html The earliest evidence of life is about the same time: http://rainbow.ldeo.columbia.edu/courses/v1001/7.html So I'd say life started as soon as liquid water was around.
Bob S Messages 4,662 Reaction score 8 Apr 6, 2009 #3 Anaerobic life and prokaryotes predated eukaryotes, and plants for photosynthesis of carbohydrates, on which all (most?) animal life depend.
Anaerobic life and prokaryotes predated eukaryotes, and plants for photosynthesis of carbohydrates, on which all (most?) animal life depend.