Animal-like protists usually are unicellular eukaryotic organisms. The absence of choroplasts and chlorophyll distinguishes these organisms from plant-like protists. Most protozoans are microscopic in nature and are seen usually in freshwater environment.
There are four major groups of protists based primarily on their modes of locomotion/movement: ciliophora (cilia-bearing), zoomastigina (flagella-bearing), sporozoa (in fluids as parasites) and sarcodina (with pseudopodia)
Different modes of reproduction are present in animal-like protists namely: binary/longitudinal fission, conjugation and fragmentation. Animal muticellularity also evolved in one of these groups exemplified by the choanoflagellate.