i need help with an assignment please 24

This is an opportunity for you to check and demonstrate your knowledge of how a case moves through the three tiers of the American federal court system, which are the district courts, the circuit courts of appeal, and the US Supreme Court. 

Specifically, the following critical elements must be addressed:  

Tiers: Describe the three tiers of the American federal court system, which are the district courts, the circuit courts of appeal, and the U.S. Supreme Court.  

Roles: Describe the role that each tier plays in the American federal court system.  

Types of Cases: Identify the types of cases heard in each of the federal courts and which federal courts hear them.  

Process: Explain the process by which a case might reach the U.S. Supreme Court, identifying any other court or courts in which the case might be heard between the district court and the U.S. Supreme Court.