Which form of government did many native american nations establish? a) they established monarchies ruled by kings and queens. b) they were unable to form any sort of structured government. c) they established a republic governed by a constitution similar to that of the united states. d) they established a dictatorship run by the strongest and bravest warriors.

The correct answer is C) They established a republic governed by a Constitution similar to that of the United States.

The form of government that many Native American nations established were: "They established a republic governed by a Constitution similar to that of the United States."

Native American Indian tribes lived under a sovereign concept called "Tribal Governance." each tribe had its own form of government. They had their own set of laws and regulations and even some had a primitive concept of checks and balances, like the one later adopted by the founding fathers of the United States.