The only organ that can permanently rid the body of excess H⁺ is the ____. A)kidney B)lungs C)skin D)liver E)spleen

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The only organ that can permanently rid the body of excess H⁺ is the kidney, as it is responsible for filtering waste products and excess fluids from the blood to be excreted as urine. The lungs are responsible for gas exchange and removing carbon dioxide, not waste products. The skin and liver also play important roles in waste removal, but do not specifically eliminate H⁺. The spleen filters blood and helps fight infections, but is not involved in waste elimination.

The Only Organ That Can Permanently Rid the Body of Excess