Which of the following is true of pathogens? a. pathogens cause noninfectious diseases. b. pathogens are not spread from person to person. c. pathogens are larger organisms such as plants and animals. d. pathogens can be found in saliva and mucus drops from sneezes.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

hope i

-lavira: )