The organism Daphnias affected affected by affected the the different chemicals in the the environment. Daphnia cannot not live in every environment therefore, when it’s not in it’s not in its natural environment [4]. I observed how Daphnia in either ethanol, caffeine, acid and base impacted the heart rate of the Daphnia. Daphnia have proven to respond to some cardioactive drugs that are known to affect human heart function [6]. I conducted two different experiments which helped me understand more about how daphnia can be affected by the environment that they live in. In summary, the first experiment was different concentrations of caffeine and ethanol in which a Daphnia staying in that environment to measure the heart rate. The experimental
