KSanabria
KSanabria KSanabria
  • 18-09-2020
  • Biology
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What is a test variable? Give an example

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raegancollier
raegancollier raegancollier
  • 18-09-2020
If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life-expectancy, then: The independent variable is the amount of vitamin that is given to the subjects within the experiment. This is controlled by the experimenting scientist.
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