Populations of viruses do not grow through cell division because they are not cells, and cells, the basic units of every living organism, proliferate by binary division. Given these facts, in what way do viruses not proliferate among the following options:
- adding heat
 - at or near the margins
 - They may not survive.
 - dry conditions
 - heat or cold
 - by indirect light
 - Localized damage
 - binary division


 

        binary division 