Joseph Ezra Gallo
BY124L MW 8:30-11:30
Introduction
Ectothermic animals are animals whose automobile trunk temperature is affected by their surroundings. This performer that if the purlieu is cold the animal bequeath be cold. If the environment is warm the animal go out be warm. This is because the animal doesnt have the capability of regulating its body formations to keep a constant body temperature. When an ectothermic animal is cold, its heart tempo go out lower. When the animal is warmer, the heart consecrate will call forth as long as the temperature isnt sufficiently gamy to harm the animal. (Campbell, 2005)
Alcohol is a depressant. This means that body systems will slow down when alcoholic drink is introduced. In particular, the heart rate 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 work 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 effect of one outside 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 freshwater ectothermic crustacean commonly referred to as a water flea. Its body is transparent....If you want to get a full essay, order it on our website: Orderessay
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