Which of the following is NOT an excretory organ? by Sunday | Apr 26 | Biology NECO | 0 comments A. Heart B. Kidney C. Liver D. Lung E. Skin Correct Answer: Option A – Heart Users Also Read These:Which of the following substances is not an…Which of the following structures is not an organ of…Which one is NOT an excretory product of man?Which of the following organs in mammals is not…Which of the these is not an excretory product of plant?