Home » What types of nitrogenous wastes are excreted by living organisms? Excretory System MCQs What types of nitrogenous wastes are excreted by living organisms? January 24, 2022 3 Views Q. What types of nitrogenous wastes are excreted by living organisms? A. Ammonia B. Uric acid C. Urea D. All of the above Answer: All of the above