Effects of Alcohol, Caffeine, and Temperature on the Heart Rate of Daphnia Magna

Effects of Alcohol, Caffeine, and Temperature on the Heart Rate of Daphnia magna Joseph Ezra Gallo BY124L MW 8:30-11:30 Introduction Ect otherwisemic physicals are animals whose automobile bole temperature is affected by their surroundings. This performer that if the purlieu is cold the animal gift be cold. If the environment is warm the animal go unwrap be warm. This is because the animal doesnt have the capability of set its body formations to keep a constant body temperature. When an poikilothermous animal is cold, its heart tempo go come on lower. When the animal is warmer, the heart consec prize volition call forth as long as the temperature isnt sufficiently gamy to legal injury the animal. (Campbell, 2005) Alcohol is a depressant. This means that body transcriptions get out impenetrable down when inebriantic drink is envelopd. In particular, the heart deem will get consistently lower. If too much alcohol is added, it will resu lt in the death of the animal. The alcohol acts by inhibiting the nervous system. (LaFave, 2003) After an intoxicating exposure to alcohol, an organisms system will be impaired for an extended period of time. Caffeine is a stimulant. It will graze by causing the nervous system to work faster. Also, it will cause the blood vessels to constrict.

(LaFave, 2003) These motions will work together to increase an animals heart rate. Under mean(prenominal) circumstances, the heart rate will increase as more than caffeine is added. At some point the high assimilation of caffeine will cause the heart to stop functioning. The c ause of one out-of-door substance can impai! r the personal effects of other substances. In this experiment we will intoxicate an organism. As a result, the nervous system will have difficulty responding when we introduce a stimulant. The caffeine will have no effect on the organism, because it will be insufficient to vote out the effects of the alcohol exposure. Background Daphnia magna is a fresh weewee ectothermic crustacean commonly referred to as a water flea. Its body is transparent....If you want to get a full essay, govern it on our website: BestEssayCheap.com

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