acastro81101 acastro81101

27-01-2020
Biology

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_____ were the first organisms that released oxygen as a by-product of photosynthesis

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marvellousukpe marvellousukpe

27-01-2020

The answer is tiny organisms known as cyanobacteria

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arroyodeanna arroyodeanna

27-01-2020

cyanobacteria or blue-green algae

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