The most distinctive feature of pathogenic Entamoeba histolytica on fresh stool examination is -: (A) Presence of active pseudopodia, (B) Erythrophagocytosis, (C) Presence of intracytoplasmic vacuole, (D) Presence of two nucleoli
Answer is B. 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.