what often infects bacteria?
major threat to health h2o simplest known organisms Food poisoning mercury humans By wind and rain microorganisms
A B C D E F G H
Viruses Viruses are the simplest organisms known.
the simplest known organisms often infect bacteria
what often infects bacteria? (A) major threat to health (B) h2o (C) simplest known organisms (D) Food poisoning (E) mercury (F) humans (G) By wind and rain (H) microorganisms