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Cyanobacteria _____.
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Asked 7/22/2012 8:56:23 PM
Updated 7/14/2014 12:52:07 PM
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Flagged by alfred123 [7/14/2014 12:51:55 PM]
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User: Cyanobacteria _____.

Weegy: Cyanobacteria are thought to have introduced oxygen into the early atmosphere. This was important because oxygen played a key role in creating the ozone layer.
Frankie17851|Points 2530|

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Asked 7/22/2012 8:56:23 PM
Updated 7/14/2014 12:52:07 PM
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This conversation has been flagged as incorrect.
Flagged by alfred123 [7/14/2014 12:51:55 PM]
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Cyanobacteria, is a phylum of bacteria that obtain their energy through photosynthesis.
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Added 7/14/2014 12:52:07 PM
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Confirmed by yumdrea [7/14/2014 12:54:05 PM]
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