What was one of the similarities of the maya's, the incas, and the aztecs?

There are many similarities but I have listed one below.

All 3 pre-columbian major civilizations the mayam the Maya, the Aztec, and the Inca were all without the one thing that we always see in early civilizations. It's a geographic feature which is a river. So there was no rivers. That in itself was very odd and rarely do civilizations develop without rivers.

i believe it was the shinto

i would say the executive branch is because the executive branch is in charge of enforcing the laws and judicial branch is in charge of enforcing but the executive branch is most responsible for it all so i would have to say the executive branch.