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In this project, water fleas (Daphnia magna), a semi-transparent freshwater crustacean, are used to study the effects of caffeine on heart rate. You do not have to learn how to take a crustacean's pulse though, because you can actually see the heart beating under a microscope. Many variations of this experiment are possible.
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- Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)