What of the following happens first? A) Introns are edited out of premature RNA
B) RNA polymerase reaches a terminator region
C) Nucleotides are covalently linked together
D) RNA polymerase binds to a promoter region of DNA

A

Explanation:

A because the introns are edited then linked together by nucleotides

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: )