Select from the following. 1. toxins 2. neutral 3. negative 4. Roundworms 5. Annelids 6. positive 7. heterotrophs 8. beneficial

Fact 1: Disease-causing microbes have a negative impact on the body. Fact 2: Each human body is unique. Given the two facts above, disease causing microbes have what type of impact on humans?
Answer:
3.