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A student performed a lab investigation to determine the effect of temperature on the heart rate of a water flea. What is the independent variable in the investigation? * o specie of flea O temperature O heart rate N O size of flea answer​

User Corgrath
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Answer:

B. Temperature

Step-by-step explanation:

The heart rate depends on the temperature so the heart rate is dependant and the one that changes is independant

User Denis Voloshin
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