Fact 1: Viruses often infect bacteria.

Fact 2: Phages, or bacteriophages are viruses that infect bacteria.

Given the two facts above, answer the question "What do bacteriophages infect?" with the following options: 
- Bacteria
 - animals
 - the skin
 - alveoli
 - food
 - Most plants
 - PDAs
 - lungs


 

 Bacteria        