Question

which of the following is not a function of the kidney? control blood volume regulate ph level production of vitamin a excretion of waste products

Explanation:

The kidneys control blood volume by adjusting urine output, regulate pH level by excreting or reabsorbing hydrogen ions and bicarbonate, and excrete waste products like urea. However, the production of Vitamin A is not a function of the kidneys. Vitamin A is mainly related to processes in the liver and other organs involved in its metabolism and storage.

Answer:

Production of Vitamin A