Abstract
In this study, irrigate fleas (Daphnia magna), a semi-transparent freshwater crustacean, are use to study the effects of caffeine and alcohol on meaning rate. There was a discover group used along with the alcohol and caffeine to ensure the results were more accurate. The prediction was the presentment of alcohol and each developmentd concentration of alcohol, would decrease marrow rate and the introduction and subsequent increased concentrations of caffeine would increase stock ticker rate. The results of this try out proved the prediction to be temper with the alcohol, but the results from the caffeine were hardly noticeable.
Methods & Materials
Our materials for this study consisted of two giving water fleas ( angiotensin-converting enzyme for the alcohol study and one for the caffeine study), one microscope to view the water fleas heart rate, 3 solutions of alcohol (2%, 4% & 6%, each manner temperature), 3 solutions of caffeine (1.0, 1.5 & 2.0, all room temperature), as well as some room temperature aquarium water to dilute the fleas with each time the manipulated inconsistent would be changed. All of this took place within a 2 hour time period in the WCC Biology lab.
It is chief(prenominal) to consider possible variables that may have had an effect on the water fleas heart rate. Stress from the noises of our classroom or existence moved from one environment to another or the period of the water flea could have changed the normal heart rate. Another experiment controlling these variables could bring about slightly different results.
We followed a structured set of directions for experimenting with each variable. First a control experiment was preformed with only the water flea and aquarium water to yield a normal heart rate of a water flea. My partner announced when I should begin counting the heart rate and after 15 seconds told me to stop. We then compute the number of beats...If you want to get a full essay, separate it on our website: Orderessay
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