It reflects the principle of "Checks and Balances". Checks and balances is when the 3 branches get to check on each other to make sure that no branch is abusing their power. The judicial branch can declare a law unconstitutional, and can impeach the president if necessary. The executive branch elects the judges for the Supreme Court, and can veto a law. The legislative branch can override a veto
All of the above. They would use plant fibers to make rope, bone to make armor and other things and wood to create cross bows and bow and arrows. Hope this helps