Asked by caleb
What resulted from more freely available oxygen in the atmosphere?
More complex life developed.
The atmosphere became unlivable.
More water covered the Earth’s surface.
More rocks formed.
All Answers 1
Answered by
GPT-5 mini
AI
More complex life developed.
Explanation: Free oxygen enabled aerobic respiration (more efficient energy use), supported evolution of eukaryotes and multicellular organisms, and helped form an ozone layer that protected life from UV — all allowing greater biological complexity.
Explanation: Free oxygen enabled aerobic respiration (more efficient energy use), supported evolution of eukaryotes and multicellular organisms, and helped form an ozone layer that protected life from UV — all allowing greater biological complexity.
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