Multiple choice Entamoeba histolytica differs from Amoeba proteus in not having the pseudopodia contractile vacuole ectoplasm nucleus Reveal answer Fill a bubble to check yourself B Correct answer Explanation Entamoeba histolytica differ from Amoeba proteus due to absence of contractile vacuole. It is monogenetic, dimorphic and parasitic protozoan found in intestine and causes amoebic dysentery or amoebiasis.