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Were the first organisms that released oxygen as a by-product of photosynthesis.

User Chantee
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2 Answers

1 vote

Cyanobacteria is the answer.

I hope this helps you, ma'am/sir/whatever your pronouns are!

User AlphaOmega
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5 votes

Answer:

Blue green algae or cynobacteria

User Antony SUTHAKAR J
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