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Why is caffeine used as control solvent in daphnia experiment?

User Hgdean
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Answer:

The addition of caffeine increased the heart beats per minute of the Daphnia in each trial. When the caffeine was added, their speed and movement remained the same. A paired T-test was conducted to compare the effect of 5%ethanol on the heart rate of Daphnia.

Step-by-step explanation:

User YSK
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