The vertebrate kidney helps to keep the acidity of the body fluids constant by varying the amount of hydrogen ions (H⁺)it secretes into the urine. This aspect of kidney function, like other mechanisms of homeostasis, is most likely controlled by ________.

Question

The vertebrate kidney helps to keep the acidity of the body fluids constant by varying the amount of hydrogen ions (H+)it secretes into the urine. This aspect of kidney function, like other mechanisms of homeostasis, is most likely controlled by ________.

The vertebrate kidney helps to keep the acidity of the body fluids constant by varying the amount of hydrogen ions (H⁺)it secretes into the urine. This aspect of kidney function, like other mechanisms of homeostasis, is most likely controlled by ________.