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.
The plant-like protists are commonly referred to as algae and can be either single-or multi-celled. Algae contain chlorophyll and carry out the process of photosynthesis. Diatoms are single-celled algae that excrete a cell wall made of silica.he animal-like protists are also known as protozoans, which is Latin for 'first animals.' All protozoans are single-celled heterotrophs and are categorized based on their movement. Paramecia are examples of protozoans that use cilia, or tiny hairs, to propel themselves through the water.