| A | B |
| protist | one-celled or many-celled eukaryotic organism that can be plantlike, animal-like, or funguslike |
| algae | chlorophyll-containing, plantlike protists that produce oxygen as a result of photosynthesis |
| flagellum | long, thin, whiplike structure of some protists that helps them move through moist or wet surroundings |
| protozoan | one-celled, animal-like protist that can live in water, soil, and living and dead organisms |
| cilia | short, threadlike structures that extend from the cell membrane of a ciliate and allow the organism to move quickly |
| pseudopod | temporary cytoplasmic extensions used by some protists to move about and trap food |
| hyphae | mass of many-celled, threadlike tubes forming the body of a fungus |
| saprophyte | organism that feeds on dead or decaying tissues of other organisms |
| spore | waterproof reproductive cell of a fungus that can grow into a new organism |
| basidium | club-shaped, reproductive structure in which club fungi produce spores |
| ascus | saclike, spore-producing structure of sac fungi |
| budding | form of asexual reproduction in which a new, genetically-identical organism forms on the side of its parent |
| sporangium | round spore case of a zygote fungus |
| lichen | organism made up of a fungus and a green alga or a cyanobacterium |
| mycorrhizae | network of hyphae and plant roots that helps plants absorb water and minerals from soil |