| A | B |
| aerobe | uses oxygen for respiration |
| anaerobe | does not use oxygem for respiration |
| antibiotic | can limit the growth or kill some bacteria |
| pathogen | a disease causing organism |
| vaccine | made from weakened or dead bacteria or viruses |
| pasteurization | process used to kill most harmful bacteria |
| saprophyte | any organism that uses dead material as an energy source |
| protist | a one or many celled eukaryotic cell that lives in moist surroundings |
| protozoans | animal like protists |
| pseudopods | extensions of cytoplasm that help motion |
| algae | plant like protists |
| hyphae | on the body of a fungus and is many celled threadlike tubes |
| sporangia | reproductive structures that grow from the zygospore |
| lichen | formed when a fungus and either a algae or cyanobacterium live together |
| mycorrhizae | fungi that form an intricate web |
| endospore | a dormat form of bacteria |