| A | B |
|---|
| silica shells used as abrasives | diatoms |
| silica shells of diatoms | frustules |
| mass of mitochondrial DNA near the flagella | kinetoplast |
| flattened sacs beneath the cell membrane | alveoli |
| responsible for red tides | dinoflagellates (gonyaulax) |
| possess two nuclei | ciliates |
| long, whip-like tail | flagella |
| cause malaria and toxoplasmosis | apicomplexa |
| protist with 2 flagella, one longitudinal and one transverse | dinoflagellates |
| have hydrogenosomes | parabasalids |
| protective structure in protists | cysts |
| carbohydrate storage form in stramenopiles | laminarin |
| brown algae pigment | fucoxanthin |
| not from a common ancestor | paraphyletic |
| from a common ancestor | monophyletic |
| responsible for conjugation in ciliates | micronuclei |
| all contain modified mitochondria | excavates |
| autotrophic and heterotrophic | mixotrophic |
| causes hiker's diarrhea | giardia (diplomonad) |
| live in low oxygen environments | diplomonads |
| change surface proteins to avoid immune attack | kinetoplastids & apicomplexans |
| protist form that enters the host in apicomplexans | sporozoite |
| resemble fungi, but are diploid | oomycetes |
| porous shells of calcium carbonate | tests |
| possess internal silica skeletons and long pointy pseudopods | radiolarins |
