Answer
An appellate case has been heard by a lower court, while an original case has not.
Explanation
The Supreme Court is highest tribunal in the Nation for all cases and controversies arising under the Constitution or the laws of the United States. The Supreme Court consists of the Chief Justice of the United States and such number of Associate Justices as may be fixed by Congress. The supreme court hears the original case and the appellate case.. The original jurisdiction of a court is the power to hear a case for the first time, as opposed to appellate jurisdiction, when a higher court has the power to review a lower court's decision. while Appellate jurisdiction is the power of a higher court to review decisions and change outcomes of decisions of lower courts.