Laura Lugo Group: Bianca Jonson Short lab report 10/4/14 Effect of household drugs on circulatory system of Lumbriculus Variegatus (blackworms) Hypothesis & justification part 1: In order to understand a little bit about the effects of common household drugs such as nicotine and caffeine on pulsation rate‚ an experiment was conducted with Lumbriculus Variegattus (Blackworms). In week 1‚ we observed the basal rate of three different worms‚ and then placed the same three worms on different concentrations
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AP Bio Lab Report Osmosis and Diffusion Introduction When a substance is released into an area‚ the random movement of its molecules results in a multitude of collisions. These collisions‚ in turn‚ lead to a dispersion of the molecules. The overall movement of the molecules will be from an area of high concentration‚ where there will be more collisions‚ to areas of low concentration‚ where the number of collisions will be much less. This process of dispersion will continue until there is no
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DESIGN: Research Question What effect does varying the alcohol concentration of yeast have on its fermentation? Introduction Fermentation is the stage during which most CO2 is produced. When no oxygen is available‚ yeast will switch to an alternate metabolic pathway utilizing sugars for energy and producing‚ primarily‚ CO2 and ethanol. Yeast divides rapidly in this phase‚ reaching its carrying capacity (about 50 million cells/ml) in the wort‚ or must‚ and remains suspended
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The Last Leaf To be perfect short story neatness‚ brevity and a significant incident or an aspect of character or an experience of some psychological moment is essential. Within its short frame work‚ it must have a beginning‚ middle and an end. There must be completeness in its structure. All the elements plot‚ character‚ dialogue‚ descriptions and background must be organically connected with other. Generally a good story has a surprising end which bears a sense of endlessness. All these characteristics
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THE LAST LEAF SCENE ONE NARRATOR: In New York City‚ there’s a small district just west of Washington Square‚ where the narrow‚ irregular streets have run crazy and broken themselves into short strips called places. It’s an ancient‚ residential community where many of the beautiful‚ old‚ brick houses date back to the 1820’s‚ when an epidemic forced people from the city to what was then a rural suburban village. Now‚ in the final year of the nineteenth century‚ we find clusters of colorful restaurants
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diesel is an ethical business practice followed. * Nissan Leaf undergoes through rigorous technical tests for ensuring safety. Although‚ it has been awarded “Top Safety Pick” by Insurance Institute for Highway Safety (IIHS) which recognizes vehicle for excellent performance in four passenger safety tests. Changes: * Many vehicles present a false interpretation of their product therefore all the claims has to be precise for Nissan Leaf in order to follow the code by Advertising Standards Canada
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In bio lab‚ my lab partners and I did a lab experiment involving yeast fermentation. Fermentation is an anaerobic process to regenerate NAD+ to keep glycolysis active. Yeast preforms ethanol fermentation which create ethanol and NAD+. The class used six different types of sugars to determine which fuels fermentation by measuring the amount the carbon dioxide bubbles produced by the yeast. Yeast are single-cell fungi that cannot make their own food. They take the sugars in the surrounding environment
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Narrator: Greenwich Village‚ a section of New York City‚ attracts those who are interested in arts. At the top of an old three story brick house lives 2 friends‚ Johnsy and Sue. During the month of November‚ pneumonia visited the city‚ touching victim after victim‚ including Johnsy. For days‚ Johnsy lays on a hospital bed while her friend Sue watches over her. One day‚ another one of their friends visited Johnsy in the hospital. Friend: Johnsy! I heard that you contracted pneumonia! How are you
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Ye Tao BISC220-13155 The Effect of Temperature on the Digestion of Starch by Activity of Enzyme α-Amylase: Observation of Rate of Starch Disappearance through Iodine Test Introduction An enzyme is a type of protein that‚ through its own structure including hydrogen bonds‚ acts like a biological catalyst and is able to accelerate the biochemical reaction rate by lowering the activation energy of the whole process‚ without which cells could hardly practice any physiological functions within human
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Nicolette Lindberg 11/30/12 IB Biology 2‚ Period 1 Transpiration Lab Background Information- Transpiration is the loss of water from a plant. Plants transpire water out of the stomata in their leaves at a different rate in every environment. The amount of transpiration is affected by the environment‚ how developed the plant is to not lose as much water‚ the surface area of the leaves‚ and how affected the plant is by its environment (Von Bargen). For this experiment‚ the plant we used was (Viola
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