Biology

Which is the independent variable in this experiment?

A) Enzyme concentration
B) Length of glass tubing
C) Temperature
D) Time

Thank you for your help and God bless

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  1. I believe that it is B... Am I correct?

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  2. I can't tell without knowing what the experiment is.

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    Ms. Sue
  3. There is no experiment. The question is just provided as I posted it... But thank you anyway.

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  4. Baloney! The question asks about "this" experiment.

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    Ms. Sue
  5. The experiment is on a table so here it is.
    Effect of Temperature on Enzyme Action.
    Test Tube 1: Temp-2C [Amount of Digestion after 48 hours: 0.0 mm]
    Test Tube 2: Temp-10C [AD after 48 hours: 3.0 mm]
    Test Tube 3: Temp-22C [AD after 48 hours: 4.5 mm]
    Test Tube 4: Temp-37C [AD after 48 hours: 8.0 mm]
    Test Tube 5: Temp-100C [AD after 48 hours: 0.0 mm]

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