| A | B |
|---|
| protist | unicellular or multicellular organisms that live in wet or moist places |
| algae | plantlike protists |
| flagellum | long, whiplike structure used for movement in some protists |
| protozoan | animal-like protists |
| cilia | short, thread-like structures extending from the cell membrane used for movement in some animal-like protists |
| pseudopod | also called "false feet"; extensions of cytoplasm used for movement and food getting in some animal-like protists |
| euglenoid | one-celled algae that have characteristics of both plants and animals |
| parasite | an organism that lives in or on another organism in order to obtain food and causes it harm |
| diatom | golden-brown algae; silica in cell walls; body in two halves |
| dinoflagellate | red algae; spinning flagellates; some contain poisons |
| green algae | contain large amounts of chlorophyll; can be unicellular or multicellular; some scientists hypothesize that plants evolved from these |
| brown algae | kelp; important source of food and shelter for aquatic organisms |
| eukaryotic | organisms that have a nucleus and other membrane-bound structures |
| chlorophyll | green, light-trapping pigment that aids in photosynthesis |
| dead organisms | food source for saprophytes |
| slime molds | funguslike protists; found on decaying vegetation in moist, cool places |
| method of movement | how animal-like protists are classified |
| Paramecium | Ciliate; has two nuclei; eat bacteria |
| Amoeba | Sracodine; uses pseudopods for movement |
| Plasmodium | Sporozoan; cannot move; all are parasites |
| Trypanosome | Flagellate; moves using flagella; some are parasites |
