Daphnia Experiment

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My group is experimenting on a Daphnia. The purpose of our experiment is to test the Daphnia’s with different liquids and see how heart rate increases,decreases or even kill the Daphnia. The variable in our experiment is changing the water content and seeing what the heart rate. The experiment on the Daphnia matters because if we were to have types of elements in lakes that can possibly kill the Daphnia’s, there can be a possibility there species could end.
What the Daphnia prefers is open fresh water in their habitat. From my research I learned that they feel more pleasant in fresh water. Daphnia are to small to live in strong water current; So they tend to live in small lakes, permanent ponds and rock pools. I also learned that Daphnia tend

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