The purpose of lab number thirteen was to examine the response of the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight‚ hearing these could be attributed to loud noises or too much light going into your eye
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the citation should be as follows: Jumping ability in fleas is correlated with resting metabolic rate (Krasnov et al.‚ 2004). Mills‚ E.L.‚ and J.L. Forney. 1983. Impact on Daphnia pulex of predation by young yellow perch in Oneida Lake‚ NewYork Saegrov‚ H.‚ A. Hobaek‚ and J.H. Labeelund. 1996. Vulnerability of melanic Daphnia to brown trout predation Zaret‚ T.M. 1980. Predation and freshwater communities. Yale University Press‚ New Haven‚ CT.
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Critique Revisiting the Stanford Prison Experiment: a Lesson in the Power of Situation January 17‚ 2012 � This is a critique of an article published in Chronicle of Higher Education‚ (v53 n30 pB6 Mar. 30‚ 2007) on "Revisiting the Stanford Prison Experiment: a Lesson in the Power of Situation" by Philip G. Zimbardo. This article discusses issues related to how good people can turn bad. SUMMARY In this article‚ Zimbardo looks at his previous social experiment on physical abuse in prison and discusses
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Effect of caffeine on Daphnia (Water fleas) Introduction- In this study I am going to investigate the effect of caffeine on Daphnia (water fleas) heart rate. I shall use daphnia as they would never have been exposed to caffeine before‚ unlike a human‚ who may have already developed a high tolerance to it. Another reason is that Daphnia have a very translucent body; therefore‚ it is relatively easy to see their heart under a microscope‚ which makes it easier to count the number of heartbeats
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The Standford Prison Experiment Introduction Professor Philip Zimbardo led a team of researchers in conducting an experiment on prison life at Standford University in 1971. Zimbardo wanted to test his hypothesis that it was the prisoners and guards inherent personality trait that leads to abusive and violent behavior in the prisons. Twenty-four predominately white male middle class men agreed to participate in a 7-14 day experiment in return for $15.00 a day‚ the equivalent of approximately $90
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Effect of Chemicals on Daphnia Heart Rate Background: In the world today‚ there are many chemicals that people use to fix or help with issues within their own bodies. Some of these chemicals may include things like caffeine‚ nicotine‚ and alcohol. These supplements can have substantial effects on other things within the body like the brain‚ liver‚ and especially the heart. For example‚ many chemicals like caffeine‚ nicotine‚ aspirin‚ and sleep aid all have effects on the body which can cause your
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Investigating the effects of Caffeine on the heart rate of Daphnia Shrimp. Aim: In this experiment we are trying to find out how varying the concentration of caffeine can affect the heart rate of Daphnia shrimp. Prediction: I predict that caffeine will increase the heart rate of the shrimp . Introduction: I believe the results will comply with my prediction. Caffeine is a compound found in especially tea and coffee plants and acts as a natural pesticide. Caffeine is a central nervous system
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IntroductionThe purpose of this experiment is to determine whether or not caffeine has an affect on the heart rate of DaphniaHypothesisThe Daphnia heart rate will increase with the concentration of caffeine. I based my hypothesis on the fact that humans heart rates increase with caffeine as it acts as a stimulant drug. In the experiment there will be several variables that I need to try and control‚ the temperature of the water is one of these because if the temperature is higher or lower on the
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Carrying out research by field experiment means the researcher can allocate pupils into high streams and low streams and measure the effect. This means that the sociologist can compare the higher and lower streams and look at the impact on how to sets have. This will let the sociologist see if streaming actually makes a difference between achievements. Setting up and carrying out the field experiment is quick and easy because nearly all schools have streaming. This means that the sociologist can
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03 - 31 - 2006 RESULTS: In this experiment the effect of different hormones on heart rate of _Daphnia_ was examined. It was investigated which substances act as stimulants and which substances act as depressant. Initially‚ _Daphnia_ was placed on depression slide under the microscope and the average heart rate was determined. Subsequently‚ _Daphnia_ was treated with different type of hormone and the effect on Daphnia heart rate was observed. It was investigated which substances act as stimulants
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