Fact 1: Populations of viruses do not grow through cell division because they are not cells.

Fact 2: Viruses are parasites of cells.

Given the two facts above, answer the question "Populations of viruses do not grow through division because they are what?" with the following options: 
- reproduce
 - homogenous
 - negative
 - dangerous
 - Loose
 - parasites
 - complex
 - fungi


 

      parasites   