Entamoeba histolytica belongs to:: (A) Phylum Protozoa, (B) Supergroup Amoebozoa, (C) Subphylum Sarcomastigophora, (D) Subphylum Sporozoa
Answer is B. According to the new classification scheme, the eukaryotes have been classified into six clusters or "Supergroups", namely : Amoebozoa, Opisthokonta, Rhizaria, Archaeplastida, Chromalveolata and Excavata. The amoebae that parasitize the intestinal tracts of humans belong to four genera: Entamoeba, Endolimax, Iodamoeba and Blastocystis. They all belong to phylum Amoebozoa, subphylum Conosa, which contains organisms that move by means of cytoplasmic protrusion called PSEUDOPODIUM. Ref: Manual of Clinical Microbiology; ASM press