You are presented with the question "Disease causing microbes have what type of impact on humans?" and the following answer choices: 
- toxins
 - neutral
 - negative
 - Roundworms
 - Annelids
 - positive
 - heterotrophs
 - beneficial

Now knowing that disease-causing microbes have a negative impact on the body and each human body is unique, choose the best answer.


 

   negative      