The data collected in this experiment provided efficient evidence to support the hypothesis which was that both the allelochemicals caffeine and kava would affect the heart beats per minute in the Daphnia magna. This means that the heart rate of Daphnia magna was affected by the allelochemicals. Caffeine raised the beats per minute, while kava drastically decreased the number of heart beats in a given minute. As seen in Figure 1 kava decreased the heart rate to -46 beats per minute, while the caffeine raised the heart beats to 26 per minute. This supports the conclusion that the stimulation humans receive off of caffeine has a similar effect in Daphnia magna. When the Daphnia magna was presented the kava their heart beats per minute dropped
