The factor that the experimenter purposefully manipulates or changes during an experiment is the Independent variable.
The Independent variable in an experiment is the element that the experimenter consciously modifies or adjusts. In a scientific experiment, an independent variable is a variable that is altered or under control. It symbolizes the root cause or motivation behind a result.
The variables that the investigator modifies to test their dependent variable are known as independent variables. The dependent variable changes as a direct result of changes in the independent variable. It is assessed and recorded how the influence affects the dependent variable. The element that you deliberately alter or control to observe its impact is known as the independent variable.
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Cells can only come from pre-existing cells
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The president of Brazil (Portuguese: Presidente do Brasil), officially the president of the Federative Republic of Brazil (Portuguese: Presidente da República Federativa do Brasil) or simply the President of the Republic, is the head of state and head of government of Brazil.
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Answer: bully pulpit
Explanation: Bully pulpit is the ability to use the office of the presidency to promote a particular program and/or to influence Congress to accept legislative proposals.