| Characteristics | Group Name (spelling counts!) | Fun facts |
| protists with cellulose cell walls and the yellow pigment phaeophytin | |
| helical or spiral cell shape, Gram- | |
| prokaryotic Domain (usually) with peptidoglycan cell wall | |
| kingdom of oxygenic photoautotrophs using chloroplasts | |
| oxygenic photoautotrophs, largest of all bacteria | |
| unicellular protists that move by cell crawling | |
| Gram-, chemo- or photosynthetic, important N cyclers, usually in soils | |
| found in sulfur-rich volcanic pools of hot acid | |
| Gram +, some lack cell walls, mostly free-living | |
| prokaryotic Domain with joined phospholipid bilayers and genes that have introns | |
| a paraphyletic group that is between domains | |
| unicellular protists with micro and macronuclei | |
| single-celled heterotrophic protists that use pseudopodia to ingest food | |
| genus of the organism that causes malaria | |
| Gram-, obligate intracellular parasites | |
| protists with a life stage bearing a 'hairy' flagellum and another normal flagellum | |
| protists with chlorophyll as the main pigment | |
| protists with small sacs just beneath the cell membrane | |
| use methane (CH4) gas as food | |
| usually asexual protists with silicate frustule for protection | |
| chemoautotrophs in hypersaline pools | |
| protists protected by theca made of cellulose | |
| protist phylum with cellulose and phycoerythrin | |