Fact 1: Some parasites kill their host, but most do not.

Fact 2: Pathogens induce a disease in their host.

Given the two facts above, answer the question "A parasites that can kill is called what?" with the following options: 
- bacteria
 - a carcinogen
 - A Greek letter
 - a pathogens
 - animals
 - an infection
 - insects
 - dangerous


 

    a pathogens     