most of a atoms mass is in the nucleus of the atom:) hope this helps you
<span>RNA polymerase, also known as DNA-dependent RNA polymerase, is an enzyme that produces primary transcript RNA. In cells, RNAP is necessary for constructing RNA chains using DNA genes as templates, a process called transcription. </span>
<span>As I stated RNA Polymerase is a Enzyme. So your answer would be A. :) </span>
<span>Hope I helped. :) Thanks or using Brainly. </span>
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The answer would be B) RR Lyrae Variables.
Answer:most protozoa (prevalently attached ciliates) can only graze on suspended bacteria and particles; in this way they have a significant effect on the effluent quality.
Explanation:Even though some protozoa (crawling ciliates and other forms) can eat flocculated bacteria, most protozoa (prevalently attached ciliates) can only graze on suspended bacteria and particles; in this way they have a significant effect on the effluent quality.