How Does Caffeine Affect the Heart Rate of the Daphnia

My results and the chart guide that as you add the caffeine to the daphnia, the eart estimate of the daphnia increases for example the daphnias jiffy is cxx without caffeine, except when caffeine is added it is increased to 168. My graph shows a positive correlation and the mistake bars atomic number 18 also very(prenominal) microscopical which shows that the results have a small range which suggests that my results are complete and rock-steady. I think that the sample was conducted well however there may be any(prenominal) ethical issues surrounding the fact that daphnias are also living species.Therefore, by victimisation daphnias in these auditions may cause a risk for them as there would be little quantities of the species left. This would also imprint otherwise living organisms that feed on daphnias for their dietetic needs therefore in the experiment we diluted the caffeine solution with distilled irrigate to prevent the daphnia from dying and afterwards, we could intrust them back in their natural habitats. On the other hand, by doing this experiments it could potentially service us in the future.Also, another bother is that I may have miscounted the daphnias heartbeat due to human errors. However, as I repeated the experiment 3 times, it ensures me that the information is quite accurate. However, if I was to do the experiment again I would do more repeats to make sure the results are reliable and there would be less endangerment of human error. Also, I would use unalike concentrations of caffeine to get more accurate comparisons and to see how different concentrations may affect the daphnias heartbeat also. Overall, I think that my results are precise and distinct.