| A | B |
| pseudopodia | cellular extensions of ameoboid cells used in moving and feeding. |
| detritus | dead organic matter |
| amoebas | a protist grade characterized by the presence of pseudopodia |
| heliozoans | amoeboids with many stiff, microtubule-supported projections called axopods radiating outward from the cell surface. |
| radiolarians | a protist, usually marine, with a shell generally made of silica and pseudopodia that radiate from the central body. |
| forams | an aquatic protist that secretes a hardened shell containin calcium carbonate and extends pseudopodia through pores in the shell. |
| plasmodial slime molds | a type of protist that has amoeboid cells, flagellated cells, and a plasmodial feeding stage in its life cycle. |
| cellular slime mold | a type of protist that has unicellular amoeboid cells and aggregated reproductive bodies in its life cycle. |
| stramenopila | large group including parasites, saprobes, and phagotrophs in addition to the major aquatic producers. |
| diatoms | a unicellular photosynthetic alga with a unique, glassy cell wall containing silica. |
| golden alga | a chrysophyte; a typically unicellular, biflagellated alga with yellow and brown carotenoid pigments |
| water mold | filamentous, microscopic, absorptive organisms that reproduce both sexually and asexually |
| white rust | a corrosion product of zinc oxidation that often strikes galvanized surfaces subjected to moisture |
| brown algae | a phaeophyte; a marine, multicellular, autotrophic protist that is the most common type of seaweed. Includes the kelps. |
| thallus | a seaweed body that is plantlike but lacks true roots, stems, and leaves. |
| holdfast | a rootlike structure that anchors a seaweed. |
| Architarchs | spherical microfossils that look very much like the resting stage cysts of dinoflagellates and other algae |
| Protozoa | single-celled eukaryotes that commonly show characteristics usually associated with animals, most notably mobility and heterotrophy, but are not classified as animals. |
| Algae | a photosynthetic, plant-like protist |
| Plankton | Mostly microscopic organisms that drift passively or swim weakly near the surfaces of oceans ponds and lakes. Owner of the Chum Bucket |
| Serial Endosymbiosis | A model of the origin of eukaryotes consisting of a sequence of endosmybiotic evets in which mitochondria, chloroplasts, and perhaps other cellular structures were derived from small prokaryots that ha been engulfed by larger cells |
| Flagellates | An organism with one or more of the whip like organelle called Flagella |
| Euglenoid | A protist, such as Euglena or its relatives, characterized by an anterior pocket, or chamber, from which one of two flagella emerge |
| Euglenozoa | monophyletic group consisting of single-celled flagellates with very different modes of nutrition, including predation, osmotrophy, parasitism, and photoautotrophy. |
| kinetoplastids | A protist, sch as Trypanosoma, whch has a single large mitochondrian that houses extranuclear DNA |
| Alveolata | monophyletic group of primarily single-celled eukaryotes that have adopted extremely diverse modes of nutrition, such as predation, photoautotrophy and intracellular parasitis |
| Dinoflagellates | Member of a group of mostly unicellular photosynthetic algea with two flagella situated in perpedicular grooves in cellulose plates covering the cell |
| Apicomplexans | parasitic protozoa. Can cause human disease |
| Sporozoties | Tiny infectious cells that represents a stage in the apicomplexan life cycle |
| Ciliates | Type of protozoans that move by means of Cilia |
| Conjugation | In prokaryotes,the direct transfer of DNA between two cells that are temporarily joind. In Clilates, a sexual process in which two cells exchanges haploid micronuclei |
| alternation of generations | A life cycle in which there is both a multicellular diploid form, the sporophyte, and a multicellular haploid form, the gametophyte; characteristic of plants. |