Avirus's protein coat, or , trick a host cell to take in the virus. viruses that infect bacteria are called ; some cause a , in which viral enzymes , or rupture, the bacterium's cell wall, while others cause a , in which the virus may remain inactive for many cell divisions.

A virus's protein coat, or capsid, helps trick a host cell to take in the virus. Viruses that infect bacteria are called bacteriophages; some cause a lytic response (?), in which viral enzymes lyse/damage (?) or rupture, the bacterium's cell wall, while others cause a lysogenic response (?), in which the virus may remain inactive for many cell divisions.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%