The lungs and kidneys are the major organs involved in regulating blood pH. 1  The lungs flush acid out of the body by exhaling CO 2. 2  The kidneys excrete acids in the urine, and they regulate the concentration of bicarbonate (HCO 3 - , a base) in blood.
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Once you are finished, your card is registered and activated. 3. Call Green Dot by telephone to register and activate your temporary MasterCard by phone. The hours of operation are 8 a.m. to 1 p.m. Monday through Friday, and 8 a.m. to 10 p.m. Saturday and Sunday (Eastern Time). The number is 866-785-6963. Say register a card when prompted or press 1..