| A | B |
| Archaebacteria | kingdom with prokaryotic cells, organisms thrive in extreme conditions |
| Eubacteria | kingdom with prokaryotic cells, often called bacteria |
| Protista | kingdom with eukaryotic cells; all members are unicellular |
| Fungi | kingdom whose members are decomposers |
| protozoa | animal-like protists |
| algae | plant-like protists |
| colony | a group of unicellular organisms living together, although each individual can live alone |
| pseudopodia | bulges of cytoplasm which allow certain protists to move |
| fragmentation | an asexual method of reproduction in protists |
| conjugation | a kind of sexual reproduction seen in some protists |
| hyphae | long filaments of fungal cells, characteristic of all fungi |
| lichen | a symbiotic relationship between a fungus and an algae |
| symbiotic | relationship in which both members benefit |
| mycorrhizae | symbiotic relationship of plant roots and fungi |
| parasite | a fungi which feeds on living matter |
| saprophyte | a fungi which feeds on dead matter |
| flagella | a long, whip-like structure used by some protists to move |
| cillia | short, hair-like structures on some protists used for movement |
| spores | involved with fungi reproduction, characteristic of all fungi |
| bacillus | rod-shaped bacteria |
| coccus | round-shaped bacteria |
| spirillum | spiral-shaped bacteria |
| eukaryotic | cell with membrane bound nucleus and organelles |
| prokaryotic | cell with non-membrane bound organelles and no true nuleus |
| strep- | arranged in end-to-end chains |
| staph- | arranged in clusters |
| red tide | an overpopulation of dinoflagellates |