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Summary Of Daphnia's Heart Rate

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At first the average Heart rate of Daphnia was 22 with no treatment after measuring it for three times. Afterward when I putted 15% of Ethanol on Daphnia I found out that Ethanol does affect Daphnia and caused to decrease the heart rate of Daphnia after measuring it for three times. Daphnia’s heart rate was decreased by 7 after putting Ethanol. I would classify Ethanol as a depressant because it decreased the heart rate of Daphnia.
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