Final answer:
The incorrect characteristic given about the Supreme Court is that the President has complete power to decide who serves on it. In reality, the President nominates justices who are then confirmed by the Senate, and these justices serve for life to ensure an independent judiciary.
Step-by-step explanation:
The characteristic of the Supreme Court that is NOT correct is "The President has complete power to decide who serves in the Supreme Court." While the President does nominate candidates for the Supreme Court, those nominations must be confirmed by the Senate. This process involves hearings and a vote in the Senate, and the President alone does not have the power to decide who serves on the Court.
Justices of the Supreme Court, including the Chief Justice and eight associate justices, serve for life, unless they resign, retire, or are removed from office. Their lifetime appointments are intended to insulate them from political pressures and ensure an independent judiciary. The Supreme Court's main role is to determine if laws are in accordance with the Constitution, a process known as judicial review.