The Protozoans which are included in the kingdom Protista, are single-celled hetrotrophic eukaryotic organisms. Depending on their mode of locomotion they are grouped into four; The amoeboid protozoans - which use pseudopodia for movement e.g. Amoeba, EntamoebaThe flagellated protozoans - which have flagella assisting their movement. e.g. TrypanosomaThe ciliated protozoans - which have thousands of cilia whose coordinated movement helps the organism to move. e.g. ParamoeciumThe sporozoans - which do not have movement but are carried around by flow of fluids. They are usually parasites with spore-like stage in their life cycle. e.g. Plasmodium