| A | B |
| ethanol | a kind of alcohol |
| multicellular | made up of more than one cell |
| spores | cells that mushrooms use to reproduce |
| algae | seaweed, for example |
| plankton | microscopic organisms that drift in the ocean |
| saprophytes | organisms that live on rotting material |
| protists | plantlike or animal-like microscopic organisms |
| fungi | mushrooms and yeasts, for example |
| diatoms | algae with glasslike cell walls |
| fission | an amoeba's reproduction method |
| protozoans | parameciums and amoebas, for example |