| A | B |
|---|
cyanobacteria,  | bacterial that produce their own food |
| aerobes | use oxygen during respiration |
| anaerobes | do not need oxgen |
| saprophyte | organism that used dead material for food |
| pathogen | organism that produces disease |
| antibiotic | substance produced by an organism that is used to kill another organism |
| antibiotic resistance | change that occurs in which a bacterial strain is not affected by an antibiotic |
bacillus,  | rod shaped |
spirillum,  | spiral shaped |
coccus,  | round shaped |
| vaccine | can prevent many viral diseases |
| toxin | poison produced by disease-causing organisms |
flagellum,  | whip-like tail used for movement |
| fission | the way bacteria reproduce |
| nitrogen fixing | bacteria that changes nitrogen from the air into useful forms for plants and animals |
| endospore | thick walled structures that prevent drying |
