Tuesday, June 25, 2013

Daphnia And Nicotine

Nicotine is an unhealthy habit.


Daphnias are almost-microscopic crustaceans called water fleas. Their bodies are hard transparent exoskeleton, like a shell. They are found in various aquatic environments, ranging from acidic swamps to freshwater ponds, streams, rivers and lakes. When a study is conducted to analyze the affect of nicotine on daphnias, the results are fatal.


Tobacco Solution


A tobacco solution can be made of tobacco from 20 cigarettes. Place the tobacco in a covered cup of water for 12 hours. Drain the solution into a container. One part tobacco solution with eight parts water in a container is a high dosage. Most studies begin with a low dosage in a container of one or two daphnia, according to Washington Association for Biomedical Research.


Results


Under low dosage of nicotine solution in the water, daphnias swim irregularly and perform loop-the-loops. As the dosage increases, the daphnia experiences seizures, swims on its back, goes into a coma and dies, according to "Time" magazine.


Conclusion


Whether low or high dosage, any amount of nicotine solution in the water causes the crustacean's heart rate to increase dramatically. The nicotine solution launches a fatal attack on the nervous system of the daphnia.









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