...ASSIGNMENT 04 SC160 Basic Biology Farah Shirmohammadi AC1110896 09/18/2012 Discuss the issues related to genetic diversity; mutations, sexual reproduction, migration, and population size. Generally speaking, there are numerous issues related to genetic diversity which include mutations, sexual reproduction, migration, and population size. To begin with, mutations (any change in the DNA sequence of an organism) introduce new genetic information into a population by altering alleles (a form of a gene usually arising through mutation) that are already present. Occasionally, a mutation introduces a new allele into the gene pool of species. On the other hand, a mutation may introduce an allele that was deficient in a local population. Meanwhile, it is present in other populations of species. All the different alleles for a trait originated as a result of mutations sometime in the past and have been maintained within the gene pool of the species as they have been passed from generation to generation during reproduction. Many mutations are harmful, but very rarely one will occur that is valuable to the organism. If a mutation produces harmful allele, the allele will then remain uncommon in the population. For example, the “Anopheles” mosquito is responsible for transmitting malaria in many African counties. At some point in the past, mutations occurred in the DNA of these mosquitoes that made some individuals tolerant to the insecticide Pyrethrin, even before...
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...Kaylee Thelen Genetic Diversity Generally speaking, there are numerous issues related to genetic diversity which include mutations, sexual reproduction, migration, and population size. Genetic diversity, or the level of biodiversity, refers to the total number of genetic characteristics in the genetic makeup of a species. Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. To begin, a mutation is a permanent change in the DNA sequence of a gene. Mutations can be caused by many different things. They can be caused by radiation and can also be induced by the organism itself. This process is called hyper mutation. Mutations are changes in an organism's DNA that potentially affect the correct functioning of genes. Mutations happen naturally when genes have dysfunctions. Changes in DNA caused by mutation can cause errors mutations have damaging effects, and the remainder end up being either neutral or weakly beneficial. This happens sometimes when natural radiation was not able to be avoided. However, the mutation rate is increased by radiation, including ultraviolet light, and exposure to certain toxic chemicals. Mutations can be grouped in two types. One is Spontaneous mutations and the other is Induced Mutations. Then you have sexual reproduction. Sexual reproduction is the formation of a new individual following the union of two gametes. These gametes have specific needs. A gamete has to meet and unite together...
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...consideration the concept of genetic diversity, how it is introduced into a population and what, if any, are the resulting factors. The four means of introduction are: • Migration • Mutation • Population Size • Sexual Reproduction In the following synopsis, each means of introduction will be considered separately followed by a conclusion of the assignment. Migration as it relates to Genetic Diversity Migration is defined as the movement of a living organism from one place to another. During the process of migration, the living organism is subject to spread its alleles among other like living beings. This, it seems, is where the concept of genetic diversity begins to take place in regards to the concept of migration. The extent of the migration process doesn’t have to be profound. If the alleles that the male or female possess are rare or abundant, it can either grossly or marginally affect the population from which it departed and possibly have an equal effect on the beings in its new environment. If the alleles in the population are not leaving in large numbers, the population will not see. Generally speaking, there are numerous issues related to genetic diversity which include mutations, sexual reproduction, migration, and population size. To begin with, mutations (any change in the DNA sequence of an organism) introduce new genetic information into a population by altering alleles (a form of a gene usually arising through mutation) that are already present...
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...still his most famous, is an international bestseller in thirteen languages. For this new edition there are two major new chapters. 'learned, witty, and very well written...exhilaratingly good.' Sir Peter Medawar, Spectator Richard Dawkins is a Lecturer in Zoology at Oxford University and a Fellow of Mew College, and the author of The Blind Watchmaker. Preface to 1976 edition This book should be read almost as though it were science fiction. It is designed to appeal to the imagination. But it is not science fiction: it is science. Cliche or not, 'stranger than fiction' expresses exactly how I feel about the truth. We are survival machines-robot vehicles blindly programmed to preserve the selfish molecules known as genes. This is a truth which still fills me with astonishment. Though I have known it for years, I never seem to get fully used to it. One of my hopes is that I may have some...
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...may be perfectly reasonable; they are nonscientific only because they are not falsifiable—there is no test for possible wrongness. 5 Galileo showed the falseness of Aristotle’s claim with a single experiment—dropping heavy and lightobjects from the Leaning Tower of Pisa. 6 A scientific fact is something that competent observers can observe and agree to be true; a hypothesis is an explanation or answer that is capable of being proved wrong; a law is a hypothesis that has been tested over and over and not contradicted; a theory is a synthesis of facts and well-tested hypotheses. 7 In everyday speech, a theory is the same as a hypothesis—a statement that hasn’t been tested. 8 Theories grow stronger and more precise as they evolve to include new information. 9 The term supernatural literally means “above nature.” Science works within nature, not above it. 10 They rely on subjective personal experience and do not lead to testable hypotheses. They lie outside the realm of science. 11 Science, art, and religion can work very well together; like strings on a guitar, when played together, the chord they produce can be a chord of profound richness. 12 Science is concerned with gathering knowledge and organizing it. Technology lets humans use that knowledge for practical purposes, and it provides the instruments scientists need to conduct their...
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...Bad Bug Book Handbook of Foodborne Pathogenic Microorganisms and Natural Toxins Introduction Food safety is a complex issue that has an impact on all segments of society, from the general public to government, industry, and academia. The second edition of the Bad Bug Book, published by the Center for Food Safety and Applied Nutrition, of the Food and Drug Administration (FDA), U.S. Department of Health and Human Services, provides current information about the major known agents that cause foodborne illness. The information provided in this handbook is abbreviated and general in nature, and is intended for practical use. It is not intended to be a comprehensive scientific or clinical reference. Under the laws administered by FDA, a food is adulterated if it contains (1) a poisonous or otherwise harmful substance that is not an inherent natural constituent of the food itself, in an amount that poses a reasonable possibility of injury to health, or (2) a substance that is an inherent natural constituent of the food itself; is not the result of environmental, agricultural, industrial, or other contamination; and is present in an amount that ordinarily renders the food injurious to health. The first includes, for example, a toxin produced by a fungus that has contaminated a food, or a pathogenic bacterium or virus, if the amount present in the food may be injurious to health. An example of the second is...
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...Joanne Meyerowitz, ed., History and September 11th John McMillian and Paul Buhle, eds., The New Left Revisited David M. Scobey, Empire City: The Making and Meaning of the New York City Landscape Gerda Lerner, Fireweed: A Political Autobiography Allida M. Black, ed., Modern American Queer History Eric Sandweiss, St. Louis: The Evolution of an American Urban Landscape Sam Wineburg, Historical Thinking and Other Unnatural Acts: Charting the Future of Teaching the Past Sharon Hartman Strom, Political Woman: Florence Luscomb and the Legacy of Radical Reform Michael Adas, ed., Agricultural and Pastoral Societies in Ancient and Classical History Jack Metzgar, Striking Steel: Solidarity Remembered Janis Appier, Policing Women: The Sexual Politics of Law Enforcement and the LAPD Allen Hunter, ed., Rethinking the Cold War Eric Foner, ed., The New American History. Revised and Expanded Edition E SSAYS ON _ T WENTIETH- C ENTURY H ISTORY Edited by Michael Adas for the American Historical Association TEMPLE UNIVERSITY PRESS PHILADELPHIA Temple University Press 1601 North Broad Street Philadelphia, Pennsylvania 19122 www.temple.edu/tempress Copyright © 2010 by Temple University All rights reserved Published 2010 Library of Congress Cataloging-in-Publication Data Essays on twentieth century history / edited by Michael...
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.... . . . . . . . . . . . . . Design in Engineering and Architecture: Towards an Integrated Philosophical Understanding . . . . . . . . . . . . . . . . . Peter Kroes, Andrew Light, Steven A. Moore, and Pieter E. Vermaas Part I Engineering Design ix 1 Design, Use, and the Physical and Intentional Aspects of Technical Artifacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maarten Franssen Designing is the Construction of Use Plans . . . . . . . . . . . . . . . . . . . . . . . . . . Wybo Houkes The Designer Fallacy and Technological Imagination . . . . . . . . . . . . . . . . . Don Ihde Technological Design as an Evolutionary Process. . . . . . . . . . . . . . . . . . . . . Philip Brey Deciding on Ethical Issues in Engineering Design . . . . . . . . ....
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...NOTE: This PDF document has a handy set of “bookmarks” for it, which are accessible by pressing the Bookmarks tab on the left side of this window. ***************************************************** We are the last. The last generation to be unaugmented. The last generation to be intellectually alone. The last generation to be limited by our bodies. We are the first. The first generation to be augmented. The first generation to be intellectually together. The first generation to be limited only by our imaginations. We stand both before and after, balancing on the razor edge of the Event Horizon of the Singularity. That this sublime juxtapositional tautology has gone unnoticed until now is itself remarkable. We're so exquisitely privileged to be living in this time, to be born right on the precipice of the greatest paradigm shift in human history, the only thing that approaches the importance of that reality is finding like minds that realize the same, and being able to make some connection with them. If these books have influenced you the same way that they have us, we invite your contact at the email addresses listed below. Enjoy, Michael Beight, piman_314@yahoo.com Steven Reddell, cronyx@gmail.com Here are some new links that we’ve found interesting: KurzweilAI.net News articles, essays, and discussion on the latest topics in technology and accelerating intelligence. SingInst.org The Singularity Institute for Artificial Intelligence: think tank devoted to increasing...
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...Haferkamp is grateful to Angelika Schade for her fruitful comments and her helpful assistance in editing this volume and to Geoff Hunter for translating the first German version of parts of the Introduction; Smelser has profited from the research assistance and critical analyses given by Joppke. 1. Social Change and Modernity Those who organized the conference on which this volume is based—including the editors— decided to use the terms "social change" and "modernity" as the organizing concepts for this project. Because these terms enjoy wide usage in contemporary sociology and are general and inclusive, they seem preferable to more specific terms such as "evolution" "progress," "differentiation," or even "development," many of which evoke more specific mechanisms, processes, and directions of change. Likewise, we have excluded historically specific terms such as "late capitalism" and "industrial society" even though these concepts figure prominently in many of the contributions to this volume. The conference strategy called for a general statement of a metaframework for the study of social change within which a variety of more specific theories could be identified. 2. Theories of Social Change Change is such an evident feature of social reality that any social-scientific theory, whatever its conceptual starting point, must sooner or later address it. At the same time it is essential to note that the ways social change has been identified have varied greatly in the history...
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...THE NERVOUS SYSTEM The nervous system allows the animal to quickly detect, communicate and co-ordinate information about its external and internal environment so it can make efficient appropriate responses for survival and/or reproduction. The two major parts of our nervous system are the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is made of the brain and spinal cord. The cranial nerves, spinal nerves and ganglia make up the PNS. The cranial nerves connect to the brain. The cranial and spinal nerves contain the axons (fibres) of sensory and motor nerve cells. Nerve cells areas are also known as neurons. Neurons are the basic unit of the nervous system. They carry information or impulses as electrical signals from one place to another in the body. There are 3 types of neurons: Sensory Neurons- Sensory neurons carry electrical signals (impulses) from receptors or sense organs to the CNS. Sensory neurons are also called afferent neurons. The cell body of sensory neurons is outside the CNS in ganglia. Motor Neurons- Motor Neurons Carry Impulses From The CNS To Effector Organs Motor Neurons Are Also Called Efferent Neurons. The Cell Bodies Of Motor Neurons Are Inside The CNS. Interneurons- These are also called intermediate, relay, or associative neurons. They carry information between sensory and motor neurons. They are found in the CNS. TOP The Structure of Neurons A Neuron consists of THREE MAIN PARTS: A. CELL...
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...Cape Town Hong Kong Montreal NOTE REGARDING WEBSITES AND PASSWORDS: If you need a password to access instructor supplements on a Longman book-specific website, please use the following information: Username: Password: awlbook adopt Senior Acquisitions Editor: Joseph Opiela Senior Supplements Editor: Donna Campion Electronic Page Makeup: Big Color Systems, Inc. Instructor’s Manual to accompany The Longman Writer: Rhetoric, Reader, Handbook, 5e and The Longman Writer: Rhetoric and Reader, Brief Edition, 5e, by Nadell/McMeniman/Langan and Comodromos Copyright ©2003 Pearson Education, Inc. All rights reserved. Printed in the United States of America. Instructors may reproduce portions of this book for classroom use only. All other reproductions are strictly prohibited without prior permission of the publisher, except in the case of brief quotations embodied in critical articles and reviews. Please visit our website at: http://www.ablongman.com ISBN: 0-321-13157-6 1 2 3 4 5 6 7 8 9 10 - D O H - 05 04 03 02 CONTENTS THEMATIC CONTENTS vi COLLABORATIVE AND/OR PROBLEM-SOLVING ACTIVITIES TEACHING COMPOSITION WITH THE LONGMAN WRITER A SUGGESTED SYLLABUS ANSWER KEY 19 PART 1: THE READING PROCESS Ellen Goodman, “Family Counterculture” PART 2: THE WRITING PROCESS Chapter 2: Getting Started Through Prewriting 20 Chapter 3: Identifying a Thesis 22 Chapter 4: Supporting the Thesis With Evidence 24 Chapter 5:...
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...words: challenge, innovate and connect. You have chosen a university known for how it helps students meet the challenges of the future. We have created a leading-edge, technology-enriched learning environment. We have invested in state-of-the-art research and teaching facilities. We have developed industry-ready programs that align with the university’s visionary research portfolio. UOIT is known for its innovative approaches to learning. In many cases, our undergraduate and graduate students are working alongside their professors on research projects and gaining valuable hands-on learning, which we believe is integral in preparing you to lead and succeed. I encourage you to take advantage of these opportunities to become the best you can be. We also invite our students to connect to the campus and the neighbouring communities. UOIT students enjoy a stimulating campus life experience that includes a wide variety of clubs, cultural and community events. We are proud of our outstanding recreational...
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...el-Ojeili and Patrick Hayden Critical Theories of Globalization Also by Chamsy el-Ojeili CONFRONTING GLOBALIZATION: Humanity, Justice and the Renewal of Politics FROM LEFT COMMUNISM TO POSTMODERNISM: Reconsidering Emancipatory Discourse Also by Patrick Hayden AMERICA’S WAR ON TERROR CONFRONTING GLOBALIZATION: Humanity, Justice and the Renewal of Politics COSMOPOLITAN GLOBAL POLITICS JOHN RAWLS: Towards a Just World Order THE PHILOSOPHY OF HUMAN RIGHTS Critical Theories of Globalization Chamsy el-Ojeili Department of Sociology, Victoria University of Wellington, New Zealand Patrick Hayden School of International Relations, University of St Andrews, UK © Patrick Hayden and Chamsy el-Ojeili 2006 All rights reserved. No reproduction, copy or transmission of this publication may be made without written permission. No paragraph of this publication may be reproduced, copied or transmitted save with written permission or in accordance with the provisions of the Copyright, Designs and Patents Act 1988, or under the terms of any licence permitting limited copying issued by the Copyright Licensing Agency, 90 Tottenham Court Road, London W1T 4LP. Any person who does any unauthorized act in relation to this publication may be liable to criminal prosecution and civil claims for damages. The authors have asserted their rights to be identified as the authors of this work in accordance with the Copyright, Designs and Patents Act 1988. First published 2006 by PALGRAVE MACMILLAN...
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...Mexico City Montreal • Munich • Paris • Singapore • Sydney • Tokyo • Toronto Editor-in-Chief: Serina Beauparlant Project Editor: Sabrina Larson PhysioEx Project Editor: Erik Fortier Editorial Assistant: Nicole Graziano Managing Editor: Wendy Earl Production Editor: Leslie Austin Composition: Cecelia G. Morales Cover Design: Riezebos Holzbaur Design Group Senior Manufacturing Buyer: Stacey Weinberger Marketing Manager: Gordon Lee Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings, 1301 Sansome St., San Francisco, CA 94111. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, 1900 E. Lake Ave., Glenview, IL 60025. For information regarding permissions, call (847) 486-2635. Many of the designations used by manufacturers and sellers to distinguish their products...
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