In certain conditions, the brain stops responding to changes in carbon dioxide levels, and, instead sets ventilation levels based on partial pressure of oxygen in the blood. In most situations, responding to decreased oxygen will result in similar respiration rates to responding to carbon dioxide. How would this change the control of blood pH (think especially about what other mechanisms would be invoked and the differences in their effects)? Suggest a specific circumstance in which the effect on pH regulation would be particularly notable

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