| A | B |
| can grow without oxygen | anaerobic bacteria |
| grow in free oxygen | aerobic bacteria |
| Gram-positive bacterium | staphylococcus |
| Gram-negative bacterium | E. coli (Escheria coli) |
| grow well in warm temperatures | thermophiles (bacteria) |
| grow well at body temperature | mesophiles (bacteria) |
| grow well at cold temperature | psychrophiles (bacteria) |
| athlete's foot infection | fungus |
| controls cell function | nucleus |
| disease-causing | pathogenic |
| vaccine for healthcare workers | hepatitis B |
| virus in food-borne illnesses | hepatitis A |
| rod-shaped bacteria | bacillus |
| spiral-shaped bacteria | spirillum |
| round bacteria | cocci |
| allow cell to move through liquid | flagella |
| bacteria with hard shells | spores |