be able to absorb any more water‚ so it will seep out onto its surface. This is the beginning of a stream that with time will evolve into a river. All water in the same drainage basin will eventually flow in the same pattern and ultimately‚ will end up in the same stream or river. Why do river shapes vary in wet and dry climates? River shapes change in various climates due to different erosion patterns. In dry‚ arid regions‚ the river valleys are often deep and/or steep. This is due to little erosion
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800 1.25 9 8.8 1000 1 1.08 9 8.8 1000 1 10 10 >20 mins 10 10 >20 mins 0 10 10 >20 mins Conclusion From the graph‚ I can conclude that enzymes can only function within a narrow pH range. They have an optimum pH that they function at‚ in this case around pH 8 and the further you deviate from that‚ the slower the rate of reaction because the enzyme functions less and less effectively. We can see from the graph that the enzyme stops functioning at pH 4 and 10 completely. This is because it has
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varying temperatures are targeted towards being at 10ºC‚ 20ºC‚ 30ºC‚ 40ºC‚ and 50ºC. It is highly improbable that each trial for each of the 5 different temperatures will be the exact temperature that was targeted‚ so it’s just important that you end up having a temperature fairly close to the targeted temperatures so that the rates of reactions that you do receive are as correct as possible. The rates of reaction will be obtained using an apparatus that will guide the carbon dioxide gas being produced
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this experiment is that the higher the concentration‚ the faster time it takes the catalase to react with the solution. As the concentration increases from 1% to 100%‚ the average reaction rate of the catalase will decrease‚ as the catalase will speed up the reaction. MATERIALS: 90 mL clear‚ plastic Solo cups filter paper bottle of regular hydrogen peroxide 1%‚ 25%‚ 50%‚ 75%‚ and 100% substrate concentration tweezers timer permanent marker pen/pencil paper for data PROCEDURE:
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Abstract The purpose of this experiment was to identify whether density is an extensive or intensive physical property. By using water displacement‚ the volumes of the paper clip samples were measured and the masses were obtained by using an electronic balance. Each mass and volume was unique to their sample so by using their values‚ density was used to identify substances in the lab. After conducting the experiment‚ the results showed that there was a positive slope between the different paper
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Question: Why would sensing and responding to vinegar be important to an organism? -It could train them to respond to certain smells and respond in a certain way. How would natural selection affect an organism’s ability to sense and respond to this stimulus? -The organism depends on its ability to sense and respond. The organisms could compete for water or hydration. What other types of stimuli would be important for the organism to respond to? - An organism that is used to light is
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Abstract The purpose of this experiment is to determine the concentration of acetic acid in vinegar by using 0.1 M HCl and NaOH solution. By performing three titrations to determine the concentration of the base‚ the concentration of the acid was determined to be 0.600 M. It was possible to determine its concentration by standardizing the sodium hydroxide solution used for the first three titrations and by using phenolphthalein to indicate its equivalence point. In conclusion‚ although there were
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accused of‚ doesn’t care much for/about the other boys‚ he speaks for them saying we want meat. * Simon – shy‚ sensitive‚ natural goodness‚ behaves kindly‚ Christ figure‚ loves nature‚ bright eyes‚ coarse black hair‚ bravest of them all‚ stands up for Piggy when the other boys pick on him‚ Simon was the first one to say the beast is just a fear inside all the boys‚ not an actual beast‚ Simon’s conversation with Lord of the Flies foreshadows his death later in the book‚ Simon is the physic apparatus
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Whitney Shepard BIOL9999 1/26/2015 Microbes in the Environment Abstract Microorganisms are plentiful and widespread in the environment. In this lab‚ we undertook to determine the differences in the agars being used and the different colony count observed. After taking four different samples of microbes from the environment and swabbed them in two different plates one with nutrient agar and the other with sabouaud dextrose agar. After the microbes had incubated for 48 hours no results were discovered
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Advanced Placement in English Literature and Composition Individual Learning Packet Teaching Unit The Glass Menagerie by Tennessee Williams written by Elizabeth Osborne Copyright © 2009 by Prestwick House Inc.‚ P.O. Box 658‚ Clayton‚ DE 19938. 1-800-932-4593. www.prestwickhouse.com Permission to copy this unit for classroom use is extended to purchaser for his or her personal use. This material‚ in whole or part‚ may not be copied for resale. ISBN 978-1-935464-19-8 Reorder No. 305033
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