The monarchy and the autocracy both have a head. The head is one of the powerful group. As they continue as leaders they would become a stronger group altogether. So basically one leader of the two groups that controls everything and is the most powerful one.
No cows, horses, sheep, pigs or goats. The Spaniards brought pigs and horses during the conquest. They multiplied over a few decades in the 1500s. Native Americans were able to hunt and travel as never before. Pigs ate their crops then morphed into razorbacks. Wild boar still roam the woods in the midwest.
Llama and alpacas were used for their wool and as pack animals in the Andes. Turkeys were domesticated in Meso America. Bison, deer and small game were used as a meat source and their hydes in North America.