A particular form or variation of an earlier or original type: downloaded the latest version of the software from the Internet. 4. An adaptation of a work of art or literature into another medium or style: the film version of a famous novel.
Protists are grouped into 3 general categories: 1  animal-like - referred to as protozoans (pro means 'first,' and zo refers to 'animals'..the first animals) 2  plant-like - referred to as algae. 3  fungus-like - referred to as slime molds and water molds.
Plant-like (unicellular algae) autotrophs (able to produce own food)use light energy to make own food from simple raw materials; many organisms rely on plant-like protists for food; about 50 to 60%% of Earths oxygen is released by plant-like protists; many plant-like protists are flagellates, called phytoflagellates- (phyto- means plant) 1) Euglenophytes: Euglenas. Image source. plant-like protists that may have 2 flagella but no cell wall, have chlorophyll euglenas have no cell wall and ingest food similar to the way some protozoans do; euglenas are unique in that the are both photosynthetic and heterotrophic