What is one of the major roles district courts play in the federal judiciary? a. overturning precedents established by the supreme court b. charging and trying defendants for breaking federal laws c. determining the constitutionality of federal laws d. evaluating the decisions of lower federal courts

B is the correct answer.

Federal district courts act primarily as the Court of original jurisdiction for the Federal Court system (with some key exceptions). As a result, the lower courts are responsible for charging and trying defendants for violations of federal law and build out the record that appellate courts consider when and if they hear a case.

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explanation:

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

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