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? asked in Science & MathematicsBiology · 7 months ago

Whats the answer to this biology question?

Testing a hypothesis often involves designing an experiment. A hypothesis should be tested by a ____ an experiment in which only one variable the _____ or manipulated variable is changed

the words available are: controlled experiment, control group, data, dependent variable, independent variable 

2 Answers

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  • Ted K
    Lv 7
    7 months ago

    1) controlled experiment

    2) independent variable

  • CRR
    Lv 7
    7 months ago

    Well there's really only one of those that fits in the first space grammatically.

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