Cells are classified into two primary groups

I believe that the two classifications that you are looking  for are eukaryotes and prokaryotes.

If im correct the 2 primary groups that cells are located in are called Eukaryotic and Prokaryotic cells.

the works of justice saves things/people

the works of service things/people

explanation:

that's the best i can word it. hope it !

answer; the president uses mass media to gain support for policies;