Dissolved oxygen

... is an obstacle, I would like to know how evolution overcame that. Also, oxygen continues to exist in the world, and cells must still have that genetic ... chemical slosh (from where prokaryote is formed) not manage to include dissolved oxygen in the various parts of the cell?

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Photosynthesis was producing oxygen both before and after the GOE. The difference was that before the GOE, organic matter and dissolved iron chemically captured any free oxygen. The GOE was the point when these minerals became saturated ...

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Another aspect is that the oxygen in your blood is isolated from monitoring because it's inside red blood cells. The bicarbonate is dissolved and easier to access.

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... because of the extreme environments outside. Larger volumes of oxygen also needed to be developed before an animal could think about becoming one with gills (dissolved oxygen in water was also low) or even lungs. As a final note, saying there was ...

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... wildlife that live near this body of water. These bacteria utilize the oxygen that is dissolved in water. Aquatic animals get suffocated due to lack of oxygen. Some aquatic organism ...

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