Sentences with phrase «oxygen concentrations triggered»

Lyons notes that the factors controlling the rise of animals are under close scrutiny, including challenges to the long - held view that a major rise in atmospheric oxygen concentrations triggered the event.

Not exact matches

By triggering a process called autophagy — in which cells literally engulf their own insides — researchers from Drexel University and Yale University were able to decrease lung injury in mice that were exposed to high concentrations of oxygen.
This in turn triggered decreases in marine phosphate concentrations, productivity, organic carbon burial and ultimately oxygen.
What does it take in terms of climate change / CO2 concentration to trigger a large reduction in the ocean's oxygen production?
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