B. the reason why scientists do he experiment more than once is because they have to compare the first attempt and the second attempt . Because if they are different they have to figure out what id the different or aka what is different. hope this helps ;)
RNA is a copy of DNA that is used to make proteins. We usually compare all eukaryotic cells as a group to all prokaryotic cells.
They call it Brackish - half salt water and half fresh water, as where a river dump in the seas
One option for reducing air pollution is to cut back on major producer factories.
Answer:
Eukaryota, Archaea, Bacteria
Explanation:
They are the largest taxonomic groups.
