Kingdom Protista includes unicellular Eukaryotes. This Kingdom is a link between Prokaryotes and other Multicellular Eukaryotes (Plants, Animals and Fungi) and so organisms show features similar to all the three groups. Plant like protists are autotrophs and these include Chrysophytes and Dinoflagellates. Animal and Fungi like protists are heterotrophs and these incude Slime moulds and protozoans and Euglena. Euglenoids do not have a cell wall and instead has a pellicle which makes body flexible.