In addition to the supreme court, the federal court system includes appellate and trial courts. trial and district courts. appellate and superior courts. trial and superior courts.

Among the options given on the question the correct answer is option A.

Appellate and trial courts.

Explanation: The Supreme court of the United States is the highest court of the country which in the system of Federal court system. We know there are two types of court mainly on the United States which are state court and federal court. The federal court has also two more parts except Supreme court. The Appellate court and the trial courts.The trial courts are often referred as the district court.

There are 13 appellate courts which sit under the Supreme court.The 94 federal judicial districts are organized into 12 regional circuits, each of which has a court of appeals.The task of a appellate court is to determine whether the decision of the trial court was justified by the law as often the defendants challenge the decision of trial court.

There are 94 district or trial courts which are called U.S. District Courts. District courts resolve disputes by determining the facts and applying legal principles to decide who is right. Every state has at least one district court .

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.