Notes Biology 1006
Popular in Ecology and the Evolution of Organisms
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This 3 page One Day of Notes was uploaded by Jennifer Pacicco on Friday January 16, 2015. The One Day of Notes belongs to Biology 1006 at George Washington University taught by Tara Scully in Winter2015. Since its upload, it has received 103 views. For similar materials see Ecology and the Evolution of Organisms in Biological Sciences at George Washington University.
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Date Created: 01/16/15
Introduction Misconception 1 People think that science is a collection of facts Science is a search for explanation about the natural world Science is uid Scientists rely on 3 pillars 1 Order 2 Explain 3 Achieve Ulcers and Bacteria Collective Consensus quotA peptic ulcer used to be a badge of success Up and coming professionalsquot were expected to earn one and if they didn t maybe they weren t working and worrying hard enough 0 Stress 0 Diet 0 Smoking 0 H pylori 90 of ulcers 0 1979 Dr J Robin Warren discovered H pylori o 1984 Dr Barry Marshall cultures drinks H pylori o 1988 correlation between ulcer relapse and H pylori o 1997 CDC NIH and others launch PSA about H pylori Misconception ll Scientists are always right and are unbiased Scientists are human 0 Scientists are limited by the current technology Misconception lll Science is a collection of hard facts that don t change a lot of ads say quotscience has provenquot 0 Everything is tentative What is another reasonable explanation for an increase in autism rates 0 19905 0 New de nition 0 A range of complex neurodevelopment disorders characterized by Social impairments Communication difficulties Restricted repetitive and stereotyped patterns of behavior Misconception IV Scientists always know that they are talking about Hypothesis an explanation about what you are observing a well educated guess 0 Theory an explanation that is well supported by experiments and evidence Religion versus Science battle 0 A wrong battle 0 Science natural world 0 Religion supernatural world Why study biology Important to study and understand science Hypothesis can be tested 0 Through observational studies 0 Variables Descriptive Analytical 0 Scientists use statistics to estimate the reliability of data 0 Correlation o Causation 0 Experimental studies 0 Experimental treatment group 0 Independent variable 0 Dependent variable 0 Control group 0 Example 0 Protists quickly killed the sh in the laboratory Limits to the Scienti c method 0 Useful for studying the natural world 0 Scienti c analysis cannot 0 Make moral judgments Characteristics of life 0 Cell gt self contained organized unit 0 DNA gt molecular inheritance blueprint Reproduction o Asexual offspring genetically identical to the parents 0 Sexual genetically different offspring Capture Storage and use of energy 0 Consumers eat other organisms as food to make themselves 0 Producers harness energy to make own food self 0 Internal environment 0 Homeostasis maintaining a controlled internal energy Living organisms evolve Individual organisms change rapidly Groups of organisms change slowly