Question: For air breathers at low altitude, ventilation is largely stimulated by low _____ in the ________…

For air breathers at low altitude, ventilation is largely
stimulated by low _____ in the _________, but can also be
stimulated by __________.

oxygen, lungs, hypoxia

pH, blood, hypoxic sensors

pH, urine, high carbon dioxide at lungs

partial pressure carbon dioxide, mitochondria, low blood partial
pressure oxygen

partial pressure oxygen, blood, lung mechanoreceptors