Biology Cells Tissues & Organs Summary All living things are made up of cells. The structures of different types of cells are related to their functions. To get into or out of cells, dissolved substances have to cross the cell membranes. Cells Cells are the smallest unit of life. All living things are made of cells. Most human cells, like most other animal cells, have the following parts: o nucleus o cytoplasm o cell membrane o mitochondria o ribosomes Plant and algal cells also have: o
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Humankind- human groups • Seeks to produce useful GENERALIZATIONS about people and their BEHAVIORS • To arrive at an UNBIASED UNDERSTANDING OF HUMAN DIVERSITY • Only scientific discipline that attempts to embrace an understanding of all of humanity • Helps us understand ourselves an others Anthropology Perspectives • Holistic Approach (broadest view) o To view things in the broadest possible contest o To cover the whole scope of humanity o To provide a total or composite view o Human culture
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artificial embryo twinning and somatic cell nuclear transfer. 1. Artificial Embryo Twinning Artificial embryo twinning is a relatively low-tech way to make clones. As the name suggests, this technique mimics the natural process that creates identical twins. In nature, twins form very early in development when the embryo splits in two. Twinning happens in the first days after egg and sperm join, while the embryo is made of just a small number of unspecialized cells. Each half of the embryo continues
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consequences. This phenomenon, termed “fetal programming,” has led to the recent theory of “fetal origins of adult disease.” Namely, alterations in fetal nutrition and endocrine status may result in developmental adaptations that permanently change the structure, physiology, and metabolism of the offspring, thereby predisposing individuals to metabolic, endocrine, and cardiovascular diseases in adult life. Animal studies show that both maternal undernutrition and over nutrition reduce placental-fetal
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HIV Epidemiology J**** A******* Grand Canyon University: NRS-427V August 2, 2014 HIV Epidemiology Human Immunodeficiency Virus (HIV) is a virus spread through body fluids that affects specific cells of the immune system, called CD4 cells, or T cells. Over time, HIV can destroy so many of these cells that the body can’t fight off infections and disease (Centers for Disease Control and Prevention (CDC), 2015). HIV is spread when certain body fluids from an infected HIV individual: blood
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INSTRUCTOR GUIDE Human Anatomy & Physiology Laboratory Manual MAIN VERSION, Eighth Edition Update CAT VERSION, Ninth Edition Update FETAL PIG VERSION, Ninth Edition Update ELAINE N. MARIEB, R.N., Ph.D Holyoke Community College SUSAN T. BAXLEY, M.A. Troy University, Montgomery Campus NANCY G. KINCAID, Ph.D Troy University, Montgomery Campus PhysioEx™ Exercises authored by Peter Z. Zao, North Idaho College Timothy Stabler, Indiana University Northwest Lori Smith, American River College Greta
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......2 PRE-REQUISITES OF THE SYLLABUS .......................................................................................................5 STRUCTURE OF THE SYLLABUS ..............................................................................................................5 UNIT 1 : BIOMOLECULES, REPRODUCTION AND DEVELOPMENT MODULE 1 : CELL AND MOLECULAR BIOLOGY ...........................................................7 MODULE 2 : GENETICS, VARIATION AND NATURAL SELECTION .........
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NINTH EDITION Burton’s MICROBIOLOGY FOR THE HEALTH SCIENCES Paul G. Engelkirk, PhD, MT(ASCP), SM(AAM) Biomedical Educational Services (Biomed Ed) Belton, Texas Adjunct Faculty, Biology Department Temple College, Temple, TX Janet Duben-Engelkirk, EdD, MT(ASCP) Biomedical Educational Services (Biomed Ed) Belton, Texas Adjunct Faculty, Biotechnology Department Temple College, Temple, TX Acquisitions Editor: David B. Troy Product Manager: John Larkin Managing Editor: Laura S. Horowitz, Hearthside
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Current hypotheses [2] suggest that asexual reproduction may have short term benefits when rapid population growth is important or in stable environments, while sexual reproduction offers a net advantage by allowing more rapid generation of genetic diversity, allowing adaptation to changing environments. Developmental constraints[3] may underlie why few animals have relinquished sexual reproduction completely in their life-cycles. Another constraint on switching from sexual to asexual reproduction
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The brain is the most complex and most fundamental of all the human organs. It is the essence of life. It is the vehicle through which man perceives reality, experiences, interprets his body’s sensory information, and coordinates all communication through billions of neural connections to various organs and systems, regulating and maintaining homeostasis (processes for maintaining internal stability). One’s experiences of life, their acquired skills, and the lessons learned are contained within
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