Which of the following organs regulates the levels of water, salts, hydrogen ions, and urea in the mammals? by Sunday | Sep 5 | Biology JAMB | 0 comments A. Kidney B. Colon C. Bladder D. Liver Correct Answer: Option A – Kidney Users Also Read These:In which of the following transitions is the largest…Which of these organs can be considered vestigial in…Which of the following organs can be considered…SS1 Chemistry Lesson Note on Salts: Definition;…Which of the following organs in mammals is not…