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 structures is not an organ of…Which of the these is not an excretory product of plant?Which excretory product is NOT found in mammals?Which of the following excretory organs maintains a…Which one is NOT an excretory product of man?