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OpenStudy (anonymous):
WILL GIVE MEDAL Scientists think that early organisms pumped oxygen into the atmosphere as a result of what process? reproduction photosynthesis respiration growth
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OpenStudy (anonymous):
photosynthesis
OpenStudy (anonymous):
I'm going to say respiration, but if I'm wrong, please don't get mad at me.
OpenStudy (anonymous):
It's photosynthesis because early organisms were cyanobacteria, blue-green algae.
OpenStudy (anonymous):
Yeah your right. Sorry. :-)
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