| Term | Definition |
| brown algae | Phaeophyta |
| red algae | Rhodophyta |
| diatoms | Bacillarophyta |
| dinoflagellates | Dinoflagellata |
| golden algae | Chrysophyta |
| euglenoids | Euglenophyta |
| green algae | Chlorophyta |
| pigment in red algae | phycobillin |
| How do humans use red algae? | carageenan-thickner cosmetics, cheese, agar gel |
| where do you fine red algae | deep sea |
| where do you fine diatoms | water |
| what are diatoms shape | valves glass like box |
| what are diatoms used for | cleaners, toothpaste |
| what is dinoflagellates | unicellular, autotroph |
| how do dinoflagellates effect us | red tide |
| what do dinoflagellates look like | 2 flagella perpendicular |
| where do you find golden algae | fresh water |
| what do golden algae form if they are in harsh conditions | cysts |
| what do golden algae look like | 2 unequal flagella |
| how do golden algae effect humans | petroleum deposits |
| where can you find euglenoids | fresh water, soil, digestive |
| what are the characteristics of euglenoids | eyespot, pellicle ,unicellular, flagella, auto/heter troph, contractile vacuole |
| are red algae bigger or smaller than brown | smaller |
| what are the 2 shapes of diatoms | centric, pinnate |
| what is a combination of fungus and algae | lichen |
| what are green algae like plants | same pigments, starch, cellulose |
| what are brown algae | multicellular marine seaweeds |
| what is the pigment of brown algae | fucoxanthin |
| what is the body of seaweeds | thallus |
| what makes seaweeds float | air bladder |
| what anchors seaweeds | hold fast |
| what is the stem of seaweeds | stipe |
| what is brown seaweeds used for | alginate creamy-icecream, drugs, makeup |