Peripheral chemoreceptors A) are located in the aortic and carotid bodies. B) are sensitive to small changes in O₂ levels in the blood. C) monitor blood pressure. D) are not sensitive to CO₂ or H⁺ levels. E) are not sensitive to changes in pH of the blood.

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Peripheral chemoreceptors are located in the aortic and carotid bodies, where they primarily detect changes in blood oxygen levels, but they are also sensitive to CO2 and pH changes, not blood pressure.

Peripheral Chemoreceptors