| A | B |
|---|
| protist | an organism that belongs to the Kingdom Protista; all protists are eukaryotes, which means their cells have a nucleus |
| algae | plant-like protists that convert the sun's energy into food through photosynthesis |
| phytoplankton | a microscopic photosynthetic organism that floats near the surface of the ocean |
| red algae | most of the world's seaweeds are this protist; they can be red, purple, black or green |
| brown algae | most seaweeds found in cool climates are this protist; they attach to rocks or form large floating beds in ocean waters; an example is kelp |
| green algae | the most diverse group of algae; scientists agree that green plants evolved from this plant-like protist |
| diatoms | these protists have glassy cell walls with ridges and pores |
| dinoflagellates | these protists are made of one cell and two flagella; they cause the red tide |
| euglenoids | single-celled protists that live primarily in fresh water; they have the ability to produce their own food, but when the light is two low for photosynthesis, they can become consumers like animals; flagella propel them through water |
| protozoa | animal-like protists that are single-celled consumers; they are classified according to their structures used for movement |
| sarcodines | amoebalike protists that move with pseudopods, which are footlike projections of cytoplasm |
| flagellates | protozoa that use flagella to move; an example is Trypanosome |
| ciliates | the most complex protozoa; they have hundreds of tiny hairlike structures known as cilia; an example is Paramecium |
| sporozoans | spore-forming protozoan that are all parasites; they absorb nutrients from their host; they cannot move on their own; an example is Malaria plasmodium |
| fungus | an organism made of many-celled threads; they are eukaryotic consumers |
| hyphae | chains of cells that make up multicellular fungi |
| mycelium | a twisted mass of fungal hyphae that have grown together |
| budding | one cell's pinching off to form another |
| spore | a small reproductive cell protected by a thick wall |
| mold | shapeless, fuzzy fungi |
| lichen | a combination of a fungus and an alga that grow intertwined |
