that if Daphnia are placed in differently concentrated solutions of barium and calcium chloride‚ then the highest concentration of calcium chloride would affect them the most because of the production of hydrochloric acid and calcium oxide from the mixing of water and calcium chloride‚ two very dangerous acids‚ with the highest concentration having the biggest chemical reaction. Within five minutes of putting the Daphnia into the 10 (ppt) solution of calcium chloride‚ one or more of the Daphnia died
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Juanita Sarmiento Daphnia Ecotoxicology Lab Report Introduction Ecosystems have a way of maintaining themselves under ordinary conditions but when a new factor is added that will most likely threaten the environment action needs to be put forth. Our environment is affected by many pollutants on a daily bases forming a threat to natural stability. For example some of the most polluted parts of the environment are bodies of water like that explained in our lab. Once pollution occurs
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Experiment Report for: ‘the affect of Caffeine on Daphnia’s heartbeat’ Introduction: 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
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ALCOHOL Drinking alcohol is like taking a drug. It is a form of drug abuse‚ and drug addiction. This is a worldwide problem that many people are involved in. There are good effects of alcohol if it is in small amounts and in self-control. On the other hand there are bad effects‚ if you take for long time. The effects that a person will get are all based on certain factors like‚ how much and how often alcohol is consumed‚ the age of the person‚ when the person started and how long they have been
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When the word alcohol is brought up‚ what do you think about? What comes to my mind is parties‚ and what people think they have to drink to have fun. Did you know that over 5‚000 people under the age of 21 die each year from alcohol-related car crashes‚ suicides‚ homicides‚ alcohol poisoning‚ and other injuries such as falls‚ burns‚ and drowning? Alcohol can be a very dangerous substance if not treated correctly and drank responsibly. Alcohol is a form of a drug but unlike the other drug‚ marijuana
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TM How Does Temperature Affect Daphnia Heart Rate? Student Study Guide DID YOU KNOW? The body temperature of the Arctic squirrel drops from 98.6°F to 26.4°F‚ which is below the freezing point of water and is the lowest known body temperature of any living mammal. DID YOU KNOW? The average body temperature of the following warmblooded animals are: Humans: 98.6°F Rabbit: 101.3°F Polar bear: 99.1°F Blue whale: 95.9°F Owl: 104.4°F Ostrich: 102.6°F BACKGROUND Every animal
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________________________________________ Absorption Alcohol is absorbed from all parts of the gastrointestinal tract largely by simple diffusion into the blood. However the small intestine is by far the most efficient region of the gastrointestinal tract for alcohol absorption because of its very large surface area. In a fasting individual‚ it is generally agreed that 10% to 20% of a dose of alcohol is absorbed from the stomach (the volume of alcohol affects the absorption) and 75% to 80% is absorbed
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Article: “Faster but not smarter: effects of caffeine and caffeine withdrawal on alertness and performance Journal: Psychopharmacology Publication Date: 30 October 2012 Is Caffeine Helping or Hindering Your Performance? Have you ever drunk coffee just for the taste? Studies show that that might be just what you’re doing when you take a sip of that bitter beverage. Whether you’re in high school and didn’t get enough sleep between sports and academics‚ you’re in college and finals are around the
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chemistry‚ an alcohol is an organic compound in which the hydroxyl functional group (-OH) is bound to a carbon atom. In particular‚ this carbon center should be saturated‚ having single bonds to three other atoms.[1] An important class of alcohols are the simple acyclic alcohols‚ the general formula for which is CnH2n+1OH. Of those‚ ethanol (C2H5OH) is the type of alcohol found in alcoholic beverages‚ and in common speech the word alcohol refers specifically to ethanol. Other alcohols are usually
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the Effect of Caffeine Consumption on Endurance among Elite Runners Under the Age of 40 in Developed Countries? Abstract Running and other endurance exercises are restricted by various natural causes of fatigue. (Callahan‚ 2011) Caffeine‚ a white crystalline drug‚ is often used by athletes as a stimulant during exercise to minimize the effects of fatigue. The purpose of this literature review is to determine if there is a causal relationship between caffeine consumption
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