Oxygen increase and nitrogen fixing (Introduction)
DAVID: Set the stage for more complex life, but, big BUT, life did not have to become more complex just because the conditions made it more likely. There is another driving force we have not yet found.: > > http://www.sciencedaily.com/releases/2014/02/140227125508.htm > > dhw:Agreed. One might call it the intelligent cell.-Or one could ask, who put the driving force into the intelligent cell?