referred to as second-hand smoke. b. Smoking effects on respiratory system The smoke causes irritation in the trachea and larynx. May results in reduced lung function and breathless caused by the swelling of the lung airway and the large amounts of excess mucus in the lung passages. This increases the risk of lung infection and symptoms such as coughing and wheezing (Ford‚ Stephenson & Ford‚ 2017) 3. Psychological effects
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Caffeine What do you call a cow who’s just given birth? De-calf-inated! How many of you have had a cup of coffee today? How about a soft drink? Chocolate? An Excedrin? All of the above products have one thing in common: They all contain caffeine. In this speech‚ we’ll look at caffeine’s origins and how it spread‚ some caffeinated products‚ and the effects that caffeine has on the body. On any given day‚ four out of five Americans have a already digested it‚ making it the World’s most popular
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The Effect of Caffeine 1% and 2% on Daphnia magna’s Heart Rate Abstract: Ectothermic animals are animals whose body temperature is affected by their surroundings. This means that if the environment is cold the animal will be cold. If the environment is warm the animal will be warm. This is because the animal doesn’t have the capability of regulating its body systems to keep a constant body temperature. When an ectothermic animal is cold‚ its heart rate will lower. When
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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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A Meta Analysis: Nicotine’s effects on the Neurological Disorders of Obsessive Compulsive Disorder‚ Attention Hyperactive Activity Disorder‚ Schizophrenia Abstract Nicotine has been shown to affect the disorders of OCD‚ ADHD and schizophrenia. A study has not been conducted to determine if previously collected data is significant enough to have nicotine used as a treatment for these disorders. Research was conducted through accessible literature to collect data of tests performed on patients
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Daphnia and Additives Lab Purpose The purpose of this lab is to test what effect of Nicotine‚ Acetylcholine‚ Epinephrine‚ Caffeine‚ and Ethanol on an organism’s heart rate. Materials * Microscope * Eye dropper * Pipet * Cotton balls * Depression slide * Beakers * Daphnia * Water * Five additives: Nicotine‚ Acetylcholine‚ Epinephrine‚ Caffeine‚ Ethanol Procedure 1. Put on safety goggles. 2. Catch a living Daphnia. 3. Transfer to a depression
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____________ of ____________ and ____________ on ____________ in Daphnia. (Length: not more than two pages of text in 12-point font‚ double-spaced; plus one page each for Table 1 and Figure 1.) Introduction: • Provide a few sentences of background information on the effects of these two drugs on heart rate in Daphnia or other animals (including humans). Cite the source(s) of your information‚ such as (Castle and Paulson 2010) for your laboratory manual. Also include the appropriate sources
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investigate the effect of different caffeine concentration on the heartbeat rate of Daphnia at room temperature. Introduction: Caffeine is found‚ and produced in many plant species to function as a natural pesticide‚ and as an inhibitor of seed germination of other nearby coffee seedlings to give it a better chance of survival. Caffeine is able to paralyze and kill certain insects upon feeding on the plants that produce caffeine. Coffee‚ tea and cocoa are common caffeine-containing plants
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Caffeine According to MedlinePlus. Gov “Caffeine is absorbed and passes quickly into the brain. It does not collect in the bloodstream or get stored in the body. It leaves the body in the urine many hours after it has been consumed” (MedlinePlus‚ 2015). Along with the comment that there is no nutritional need for it in the diet‚ and can be avoided. This stimulant can be used as an extra dietary supplement to help with fatigue and drowsiness. “This can be found in tea leaves‚ kola nuts‚ coffee beans
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information Daphnia Magna is an arthropod that can grow up to 5 mm. It is a filter feeder meaning it feeds off of suspended particles in the water. Daphnia can consume particles that range from 1µ to 50µ. The heart of Daphnia is located dorsally meaning it’s located in the back. The heart rate of Daphnia can range due to many variables‚ one being temperature. "At a temperature averaging 20o C its heart rate is about 200 beats per minute."2 As the temperature surrounding the Daphnia decreases so
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