Explain the three-tiered structure of the Federal Court System and compare it to the three-tiered structure of the California Court system? What is the purpose and function of each level?

Explain the three-tiered structure of the Federal Court System and compare it to the three-tiered structure of the California Court system? What is the purpose and function of each level?
Define and explain the concept of “original jurisdiction” as it relates to the U.S. Supreme Court. How does it differ from “Judicial Review”?