Read lines 4 through 8 of chimney sweeper. What is the narrator expressing in these lines

"teotihuacan was the cultural center of the zapotecs".

Where are the following ?

They made a checks and balance system to equal power within the branches. the "check" meant that one branch would watch one branch and "balance" them if they were too powerful. if you want more info on this, i would just google checks and balance system.