When testing how quickly a rat dies based on the amount of poison it eats, which of the following is the independent variable and which is the dependent variable?
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Question 2 of 40
Which of the following is a representation of a natural pattern or occurrence that is difficult or impossible to experience directly?
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Question 3 of 40
Which of the following serves as a standard or series of standards for comparing the results of an experiment?
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Question 4 of 40
Which of the following best describes the statement 'This flower is dead; someone must have forgotten to water it'?
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Question 5 of 40
What is the correct way to represent 8,600,000,000,000 in scientific notation with two significant figures?
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