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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electronic fetal monitor (EFM)‚ category II fetal heart rate (FHR) Huddle Up for Fetal Safety: Strategies to Improve Outcomes In the mid-1990s‚ the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) sponsored a series of workshops to standardize definitions of electronic fetal monitoring (EFM) fetal heart rate (FHR) characteristics. The common language they developed to describe fetal heart rate tracing patterns‚ which provide important information
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Ethanol: Good or Bad? In the pursuit of a cleaner renewable resource to fossil fuels‚ many scientist have found alternatives. Examples include solar‚ wind‚ biogas‚ geothermal‚ biomass energy and cellulosic ethanol. In the last twenty years‚ efforts have been made to reduce our dependency on foreign oil and ethanol has been an option. Ethanol is nothing new; in fact‚ it was first used in a motor built by Samuel Morey in 1826 (Ethanol History). Since the 1980s‚ the government started having oil companies
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Although ethanol has provided our world with many benefits‚ there are also many drawbacks as well. Because ethanol is manufactured from corn crops‚ the value of most corn is higher in costs. This drawback plays a role not only in the world of energy but also in the food industry‚ thus overall impacting our economy. In addition‚ the corn also requires a large quantity of land in order to produce enough material for the ethanol. Farm land is very scarce and difficult to come by‚ because of the constant
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will explore the use of ethanol as an alternative fuel source. Ethanol is considered a renewable energy resource; as it is derived from crops such as: corn‚ sugarcane‚ beets‚ as well as‚ other organic materials. The use of ethanol could decrease our dependence on ever depleting supplies of fossil fuels; such as oil. In this paper‚ I will briefly review how ethanol is produced in different parts of the world. I will also review several of the advantages of using ethanol as a renewable source of
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You never feel more alive than when you are closest to death. But is it worth it? Is the stress-filled phenomenon that is adrenalin‚ coming straight from the adrenal glands travelling to the heart via significantly dilated blood vessels‚ stimulating a higher heart rate‚ while triggering a release of endorphins worth the risk? Worth the ‘risk’ that will all capture us eventually but still cripples fully grown men to a riverbank of tears and a prison of hidden emotional pain? Maybe‚ maybe not...
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Ethanol Fuel‚ the Green Myth Who in the United States of America does not like a good ear of corn or two to eat? It is a food staple in many of our households throughout this great country and helps to feed the world’s ever growing population. It is also used to produce a biofuel and gasoline fuel additive called ethanol‚ and is being promoted as environmentally friendlier‚ has less of a carbon footprint on the earth then fossil fuels like gasoline and oil do‚ and will fully reduce our dependency
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are looking into is ethanol or CH3CH2OH which is the chemical make up of ethanol. Ethanol is a clear colorless liquid that at low levels has a sweet taste‚ but at levels needed for fuel use it has a burning taste. Since 1990‚ when the government decided that gasoline burned had unsafe levels of carbon monoxide‚ ethanol has been added to gasoline in order to make it a higher octane level‚ burn cleaner‚ and to over all improve the emissions of gasoline. In order for an ethanol mixture to be considered
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Goldschmidt Honors Biology 2° Mrs. Gempel September 3‚ 2015 Daphnia Lab Results Paper Abstract The goal of the study was to observe the effects of multiple chemicals on a Daphnia magna’s heart-rate compared to a control (pond water). The different chemicals were caffeine and alcohol. The heart-rate was the main variable in this experiment. The Daphnia’s heart-rate was observed for 15 seconds and then multiplied by 4 to show its heart-rate in one minute. This was repeated 4 times for each chemical
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Factors that Affect the Rate of Reaction of Peroxidase Purpose: To determine the effect of various factors on the rate of reaction between an enzyme and its substrate‚ and also to determine the optimal ranges under which the enzyme activity is maximized. Also to determine whether saline and alcohol are inhibitors or activators Hypothesis: PH factor prediction: I predict that as the pH increases so the activity of the enzyme will increase until it reaches optimum pH range (pH 7) because the
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