The scientific method requires observations of nature to formulate and test hypotheses.[1] It consists of these steps:[2][3] Asking a question about a natural phenomenon Making observations of the phenomenon Hypothesizing an explanation for the phenomenon Predicting a logical consequence of the hypothesis Testing the hypothesis by an experiment‚ an observational study‚ or a field study Creating a conclusion with data gathered in the experiment‚ or forming a revised/new hypothesis and repeating
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Mobile phones: A not-so-silent killer? Sunday‚ Jun 23‚ 2013‚ 8:42 IST | Agency: Daily Telegraph To some scientists‚ they’re deadlier than cigarettes; to others they’re (mostly) harmless. Will we ever know the truth about mobile phones? Julia Llewellyn Smith finds out. Representational image - DNA In 1996‚ Neil Whitfield‚ a sales manager from Wigan‚ was given his first mobile phone by his company. "It was introduced as a nice‚ cuddly friend. It had all of your mates’ contact details on it. It was
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conditions. Room temperature was 22 ± 2 °C on a 12-h:12-h light:dark cycle. Access to food and water was ad libitum. Sucrose Metabolic Syndrome Induced Metabolic syndrome was induced from birth to eighteen weeks of life‚ by drinking a sucrose solution 35% ad libitum‚ which ensured that all main manifestations of the disease were developed. Three females and one male with sucrose-induced metabolic syndrome were mated. Likewise‚ we
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Houston’s interest in the outdoors forms the core of the stories in Cowboys Are My Weakness (1992)‚ stories that have been described as "exhilarating‚ like a swift ride through river rapids‚" as well as "beautifully written and funny." In "A Blizzard Under Blue Sky‚" the exhilaration comes from sharing a winter adventure in the foothills of the Rocky Mountains‚ while the beauty of the writing is exemplified by this magical description of snow: "[it] stopped being simply white and became translucent‚
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The CELL THEORY‚ or cell doctrine‚ states that all organisms are composed of similar units of organization‚ called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859)‚ Mendel’s laws of inheritance (1865)‚ and the establishment of comparative biochemistry (1940). Ultrastructural research and modern molecular biology have
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Germination of Eggplant (Solanum melongena Linn.)‚ Okra (Abelmoschus esculentus (L.) Moench)‚ and Rice (Oryza sativa Linn.) Seeds Soaked in Alkaline Water In Partial Fulfillment of the Requirements In Bi 160 and Bi 160.1 First Semester‚ AY 2012-2013 A Research Paper Presented to Anneke Padolina‚ Ph.D Department of Biology Ateneo de Manila University Submitted by: Medina‚ Kryzka August 2012 I. Introduction The life cycle of plants is characterized by the change in ploidy
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Introduction Molar volume is the name given to the volume that one mole of any gas occupies at standard temperature and pressure. In chemistry‚ many of the materials worked with are gases. It is often easier to measure the volume of a sample of gas‚ rather than determine its mass. The main purpose of this lab is to determine the molar volume of hydrogen gas experimentally in order to compare it to the theoretical molar volume of ideal gases. In this experiment‚ a known mass of magnesium is reacted
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Lab 15 Administering Windows 7 Exercise 15.1 | Creating a Custom Backup Job | Overview | In Exercise 15.1‚ you create a single‚ custom backup job that saves selected files and folders to a partition on the computer’s hard disk. | Completion time | 20 minutes | Question 1 | Why doesn’t the system drive (C:) appear on the Select where you want to save your backup page? You cannot backup C: drive to C: Drive | Question 2 | Why does a warning appear when
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15/15 - IT Infrastructure Chapter 1 Review Questions 1.1 ( 2 marks) What three kinds of organisational difficulties can communications technology help companies overcome? Firstly‚ companies that are geographically dispersed are made more manageable with good networks. Secondly‚ they help trim down middle management for top-heavy companies and lastly‚ they help break down the barriers between divisions within a company. Chapter 2 Problems 2.16 (3 marks) A digital video camera provides an
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Vrabec October 20‚ 2009 Test #1 * Add a small piece of cracker in test tube #1 and add Lugol’s solution. Observation #1 * The cracker turned a black colour when the Lugol’s solution was added to it. This was a positive result‚ meaning that the cracker contains starch. Test #2 * Add a bigger piece of cracker in test tube #2‚ add 5 mL of Benedict’s solution‚ place in a boiling water bath‚ and record observations after 5 minutes. Observation #2 * There was no change in colour
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