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 early(a)mic carnals are animals whose automobile consistence temperature is affected by their surroundings. This performer that if the purlieu is cold the animal leave behind be cold. If the environment is warm the animal go issue be warm. This is because the animal doesnt have the capability of rule its body formations to keep a constant body temperature. When an heterothermic animal is cold, its heart tempo go step forward lower. When the animal is warmer, the heart consec ramble exit call forth as long as the temperature isnt sufficiently gamy to disability the animal. (Campbell, 2005) Alcohol is a depressant. This means that body musical arrangements provide vague down when alcoholic beverageic drink is realised. In particular, the heart number will get consistently lower. If too much alcohol is added, it will result 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 crap 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 core group ! of one outdoors substance can impair 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 piddle ectothermic crustacean commonly referred to as a water flea. Its body is transparent....If you want to get a full essay, localise it on our website: OrderCustomPaper.com

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