What caused American colonists in different states to unify as one nation leading up to the French and Indian War?

Which of the following is a major difference between appellate courts and courts of first instance? a. appellate courts do not use a jury, only judges. courts of first instance hold appellate jurisdiction exclusively. c. courts of first instance do not use judges and appellate courts do. d. appellate courts hear all criminal and civil cases and courts of first instance do not.