Answer:
Kidneys are considered the most effective regulator of blood [H+] and pH
Step-by-step explanation:
Kidneys are considered the most effective regulator of blood [H+] and pH because they can excrete excess hydrogen ions or bicarbonate ions into the urine, depending on the pH of the blood. The kidneys also produce and secrete hormones that regulate blood pressure and electrolyte balance, which affect blood pH. The lungs, stomach, and intestines also play a role in maintaining blood pH, but they are not as effective as the kidneys.