The organisms of Kingdom Protista are
unicellular and eukaryotic
Kingdom Protista includes unicellular and eukaryotic organisms. These organisms contain only a single cell. They also have a well-marked nucleus along with a nuclear membrane. However, they lack a cell wall. Their mode of nutrition can be autotrophic as well as heterotrophic. They move with the help of appendages such as cilia and flagella. Paramecium, Euglena and Amoeba are some examples of organisms belonging to Kingdom Protista.