52) what is the term that refers to difficulty in swallowing that may be caused by obstruction,
inflammation, or trauma?
a) achalasia
b) eructation
c) colitis
d) dysphagia
e) borborygmus

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

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: )