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Ne4ueva [31]
2 years ago
9

Which organisms were the earliest oxygen-producing life-forms?

Biology
1 answer:
mart [117]2 years ago
5 0

Answer:

The earliest oxygen-producing life forms were Cyanobacteria. Besides Cyanobacteria, these tiny organisms have another name known as blue-green algae

Explanation:Some scientists think that 2.4 billion years ago is when organisms called cyanobacteria first evolved, which could perform oxygen-producing (oxygenic) photosynthesis. Other scientist think that cyanobacteria evolved long before 2.4 billion years ago but something prevented oxygen from accumulating in the air

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