what is a principle of the constitution that best describes the change from state legislatures appointing senators to direct elections from the people?

Explanation:

The Seventeenth Amendment restates the first paragraph of Article I, section 3 of the Constitution and provides for the election of senators by replacing the phrase "chosen by the Legislature thereof" with "elected by the people thereof." In addition, it allows the governor or executive authority of each state.

the answer is       political office  

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disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.