That answer is 100% A, Complete your schoolwork
These one-cell organisms are responsible for illnesses such as strep throat<span>, urinary tract infections and </span>tuberculosis<span>. Viruses. Even smaller than bacteria, viruses cause a multitude of diseases — ranging from the common cold to </span>AIDS<span>. Fungi. </span>
D. doesn't lead to a productive end.
If organ systems failed to work together your body would not work because your heart pumps blood in order for your whole body to work.
Answer:food-borne contagion ( i think) sorry if i got wrong
Explanation: