Multiple choice Which of the following is the causative organism of amoebic dysentery? Entamoeba gingivalis Entamoeba invadens Entamoeba histolytica Entamoeba polecki Reveal answer Fill a bubble to check yourself C Correct answer Explanation Entamoeba histolytica causes amoebic dysentery in humans. Amoebic dysentery is transmitted through contaminated food and water. In this, the stools are foul smelling, often acccompanied by blood and mucus.