caffeine concentration rises‚ so does the mean heart rate of daphnia. Risk Assessment: In this experiment there are the following risks both for the human that carries out the experiment and the daphnia: ← The human that carries out the experiment should be cautious not to touch the lamp with wet hands since it uses electricity. ← Also‚ be careful not to spill any of the pond water on the floor. ← As for the daphnia‚ there is a chance for them to die as when they are exposed to
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The Effects of Caffeine on the Heart Rate of Daphnia This lab was designed to show how caffeine affected the heart rate of daphnia after exposing them to different concentrations of caffeine for ten minutes. Caffeine is a stimulant‚ which‚ in humans‚ causes heart rates and blood pressure to increase. Its effects range from mild alertness to heightened anxiety and body tension. We wanted to see if caffeine affected the daphnia’s heart rate in the same way. We filled three containers with three different
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Aim: This is the reason for doing the experiment. It may contain a research question‚ but it must state what it is that we are investigating or what we hope to find out. Hypothesis: This is the basis behind your plan which leads you to believe that the experiment can be successfully carried out. It may also contain a prediction of the final answer (supported by a reason) Method: This is what was actually done or is going to be done. It may need a diagram‚ in which case it should be drawn
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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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Aim: The aim of this experiment is to understand the affect of the drug Caffeine on the rate of a Daphnia’s heartbeat. This is to understand the affect of caffeine on a human’s heart rate and the use of daphnia keeps the experiment fair and safe. Background Research: Daphnia – Daphnia (water fleas) are grouped as crustaceans under the arthropod group of Kingdom Anamalia. They have an open circulatory system where fluid (there is no distinction between blood and nutritional fluid) in the
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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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Alcohol: Past‚ Present‚ and Future Karl Ballenger Mrs. Hines Communication Arts 200 period 7 February 20‚ 2007 The beginning of Alcohol While no one knows when alcohol was first used as a beverage (or even created) we do know that it has been used for over ten thousand years. Archeologists to this day are discovering old beer mug containers from the B.C period. Some other archeologist and a few scientists believe it was created in an experimental
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SHOULD ALCOHOL BE BANNED? We can scarcely turn on televisions or pick up newspapers these days without being confronted with yet another depressing news item about the alcohol law. Some people‚ whom I agree with‚ believe that alcohol should be banned for society welfare level. They also claim that alcohol triggers committing crime. On the other hand‚ others think that alcohol ban is to interfere in life style. To begin with‚ the supporters of this argument that alcohol results in
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Alcohol and Depression: Is There a Link? Alcoholic beverages are the only consumable products in the U.S. that do not have nutrition labels. Consumers are being kept in the dark about serving size‚ alcoholic content‚ calories‚ carbohydrates‚ fats‚ protein‚ cholesterol and other nutrition information. Alcohol‚ specifically ethyl alcohol or ethanol‚ is produced by fermenting the starch or sugar in various fruits and grains. Alcoholic beverages produced by fermentation and distillation include beer
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Alcohol Advertising Exposure to alcohol advertising is an everyday occurrence. Alcohol advertising is persuasive not only to adults but to those who are too young to buy alcohol legally. Although parents and peers have a large impact on youth decisions to drink‚ marketing also has a significant impact by influencing the attitudes of parents and peers and helping to create an environment that promotes underage drinking. Alcohol companies focus billions of dollars on advertising their products
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