<prompt> The most distinctive feature of pathogenic Entamoeba histolytica on fresh stool examination is -Presence of active pseudopodiaErythrophagocytosisPresence of intracytoplasmic vacuolePresence of two nucleoli  <response>: Ans. is b i.e., Erythrophagocytosis . The presence of red blood cells in the cytoplasm erythrophagocytosis is diagnostic of E. histolytica as it is the only intestinal amoeba to exhibit this characteristic. 