The development of ____ factored in the development of complex organisms. a. ozone c. cyanobacteria b. oxygen d. all of the above

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ALL OF THE ABOVE. The development of ozone, oxygen, and cyanobacteria factored in the development of complex organisms.

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Asked 11/13/2015 3:23:34 PM

Updated 11/14/2015 8:41:10 AM

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Edited by jeifunk [11/14/2015 8:41:09 AM], Confirmed by jeifunk [11/14/2015 8:41:10 AM]

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