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Which evidence suggests that some of the first life on earth was prokaryotic bacteria?

O the absence of fossils older than dinosaurs

O the presence of oxygen in early earth's atmosphere

O the discovery of 3.5 billion year old stromatolite fossils

O the simplicity of modern bacteria compared to other organisms

User Alyoshak
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Answer: The discovery of 3.5 billion year old stromatolite fossils

User Aknay
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