September 2013 1. Define the following terms: mass number‚ atomic number and the atomic mass unit (amu). 2. With the help of The Periodic Table‚ complete the table below. Symbol Atomic # Proton # Neutron # # of Electrons Mass Number Charge Ar 19 31 17 18 35 20 18 3+ 40 3. In your own words‚ explain Thomson’s and Rutherford’s contribution to the atomic theory. Give sketches to substantiate your answer. 4. Explain how Bohr contributed in defining the structure of the atom. 5. Magnetic resonance imaging
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The Immune System The immune system is a group of cells‚ molecules‚ and tissues that help defend the body against diseases and other harmful invaders. The immune system provides protection against a variety of potentially damaging substances that can invade the body. These substances include disease-causing organisms‚ such as bacteria‚ fungi‚ parasites‚ and viruses. The body’s ability to resist these invaders is called immunity. A key feature of the immune system is its ability to destroy
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Unit 201 Outcome 1: 1.1 Guidelines‚ procedures and codes of practices that relate to my work are important because gives you the information on how to execute my job efficiently and safely. Failing to fallow this you could harm yourself or others or not complying with employment law. 1.2 By planning your work you will increase productivity and work efficiency. That way you can monitor your progress. Your job description sets your duties for which you are responsible. You are accountable
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Theory‚ 22 Lab) and NT1430 Linux Networking Important General Class Information Instructor: Steve Todd e-mail: Primary: stodd@itt-tech.edu Phone: Cell – 702-539-9414 (has voice mail) ITT Campus – 702-240-0967 Class Meetings: Saturday mornings 9:00 AM - 1:45 PM Class documents‚ assignments and quizzes and tests are available at stevetodd.coursesites.com. Office Hours: I do not have standard office hours‚ I generally will be in one of the labs working
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This file of BIO 100 Week 4 Discussion Questions shows the solutions to the following problems: DQ 1: Post your response to the following: What are some of the benefits of squeezing so much data into virtually every cell in the body? Why did humans not evolve with one central repository of DNA rather than having it replicated throughout the body? Assume that the hereditary information carried in genes and DNA is responsible for many differences observed in humans and other living things. How
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Write down an expression for the frequency of oscillation of one oxygen atom in terms of its mass m and the force constant K of one half of the spring. How is K related to the force constant k of the whole spring?[the force constant is the force per unit extension.] ii)From spectroscopic measurements of oxygen molecules ‚it may be deduced that the frequency of oscillation of the molecule is about 4.7 x10^13 Hz. In what region of the electromagnetic spectrum does radiation of this frequency lie? What
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OCR B (Salters) AS level Chemistry UNIT 2 – F332 Elements from the sea Halogens and Halides (group 7 chemistry) * Halogen is the elemental molecule‚ eg/ Cl₂‚ Br₂ * Halide is in a compound‚ eg/ KBr‚ KCl | Fluorine | Chlorine | Bromine | Iodine | Appearance at room temp | Pale yellow gas | Green gas | Dark red volatile liquid | Shiny black solid – sublimes to purple gas | Halide | Colour precipitate with silver nitrate | KCl | White | KBr | Cream | KI | Pale Yellow |
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form or for any other purpose without the prior written consent of The McGraw-Hill Companies‚ Inc.‚ including‚ but not limited to‚ in any network or other electronic storage or transmission‚ or broadcast for distance learning. Acid-free paper 1 2 3 4 5 6 7 8 9 0 QPD/QPD 0 3 2 1 0 ISBN 0-07-282957-5 www.mhhe.com ii CONTENTS PREFACE.............................................................................................................................................................
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project number (from cover page 1). This number is required on every page of the report. 2. After "METHOD"‚ enter the analytical method used. (e.g.‚ EPA 8260‚ or EPA method 8021). 3. After "REPORTING UNIT"‚ enter the appropriate reporting unit. The units ug/L for water samples and ug/Kg for soil samples are recommended for volatile analyses. The units mg/L and mg/Kg are recommended for TPH/semi-volatile analyses. 4. After "DATE ANALYZED"‚ enter the date on which the sample is analyzed. 5
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Foundations of Biodiversity Lab Manual Bio 1A Fall 2014 Compiled by Drs. Lambrecht‚ Shaffer‚ and Soto with additions and changes by Stephanie Trewhitt and Dr. Shannon Bros-Seemann San Jose State University INDEX Week Date Lab Topic Page 1 Aug 25 Lab safety‚ microscope use‚ adding course Lab 1 2 Sept 1 Cell Life cycle - mitosis/meiosis Evolutionary I Lab 2 3 Sept 8 Plant Evolutionary History I Lab 3 4 Sept 15 Plant Evolutionary History II 5 Sept 22 Adaptation and
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