| A | B |
|---|
| virus protein coat | capsid |
| most numerous organism | monerans |
| bacteria infecting viruses | bacteriophages |
| two cycles of viruses | lytic and lysogeninc |
| weakened form of a virus | vaccination |
| using viruses to transfer genes | genetic engineering |
| viruses that replicate backwards | retroviruses |
| prokaryotes have no | nucleus |
| methane producing bacteria | methanogens |
| salt loving bacteria | halophiles |
| gram-negative bacteria that photosynthesize | cyanobacteria |
| whiplike structure used for movement | flagella |
| spheres | cocci |
| rods | bacilli |
| spirals | spirilla |
| using a virus to transfer DNA to a bacteria | conjugation |
| bacteria living together | symbiosis |
| organisms depending on each other | mutualism |
| bacteria that helps plants | Rhizobacteria |
| cycle in a virus that bursts a cell | lytic |
