| A | B |
|---|
| protist | one-celled or many-celled eukaryotic organism that can be plantlike, animal-like, or funguslike |
| algae | chlorophyll-containing, plantlike protists |
| flagellum | long, thin, whiplike structure of some protists that helps them move |
| 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 |
| pseudopods | 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 |
| budding | form of asexual reproduction in which a new, genetically-identical organism forms on the side of its parent |
| lichen | organism made up of a fungus and a green alga or a cyanobacterium |
| zooplankton | plankton consisting of small animals and the immature stages of larger animals |
| plankton | small and microscopic organisms drifting in the sea or fresh water, including diatoms, protozoans, small crustaceans, eggs and larval stages of larger animals |
| phytoplankton | plankton consisting of microscopic plants |
| kelp | large, brown, cold-water seaweed forming underwater forests |
| diatoms | single-celled algae that form a silica-based cell wall |
| microbe | short form of microorganism |
| zooflagellate | protozoan that moves using a flagellum |
| seaweed | large, multicellular marine alga |
| contractile vacuole | cell structure that collects extra water then expels it |
