You are presented with the question "What can have a negative impact on the body?" and the following answer choices: 
- Pesticides
 - Growing a beard
 - Pathogens
 - Probiotics
 - Restful sleep
 - viruses
 - smallpox
 - bacteria

Now knowing that disease-causing microbes have a negative impact on the body and pathogens are microbes that cause disease, choose the best answer.


 

   Pathogens      