what has a negative impact on the body?
pathogens electrons smallpox amoebae vitamins lungs viruses smoking
A B C D E F G H
Pathogens are microbes that cause disease.
pathogens have a negative impact on the body
what has a negative impact on the body? (A) pathogens (B) electrons (C) smallpox (D) amoebae (E) vitamins (F) lungs (G) viruses (H) smoking