human parasitic amoeba with pseudopodia

acanthamoeba ameba amoeba amoebiasis amoebic balamuthia biology brain castellanii cell coli destroying disease dysentery eating encephalitis entamoeba fowleri granulomatous health healthcare histolytica illness illustration infection infective mandrillaris medical medicine microbe microbiological microbiology microorganism microscopic microscopy naegleria organic organism parasite parasitology pathogen pathogenic proteus protozoan reproductive research science sickness unicellular