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EVOLUTION

EVOLUTION. A Change in Allele Frequency Over Time. A population includes all the members of ONE species living in a specific area http://www.e-cobo.com/wallpapers/forest/forest_4.jpg. HYBRIDS. http://www.epou.org/hybrids.htm. Savannah. Tigon. Zorse. Liger.

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EVOLUTION

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  1. EVOLUTION • A Change in Allele Frequency Over Time

  2. Apopulationincludes all the membersofONEspeciesliving in a specific areahttp://www.e-cobo.com/wallpapers/forest/forest_4.jpg

  3. HYBRIDS http://www.epou.org/hybrids.htm Savannah Tigon Zorse Liger

  4. Crossing over&independentassortmentlead torecombinationhttp://www.anselm.edu/homepage/jpitocch/genbio/recombvar.JPGhttp://www.accessexcellence.org/RC/VL/GG/images/comeiosis.gif

  5. Adaptive Radiationhttp://fig.cox.miami.edu/~cmallery/150/unity/c1x17b-finches.jpg

  6. Geographic Isolationhttp://www.agen.ufl.edu/~chyn/age2062/lect/lect_11/18_08.GIFhttp://www.agen.ufl.edu/~chyn/age2062/lect/lect_11/18_07.GIF 2 species of squirrels separated by the Grand Canyon

  7. Reproductive Isolationhttp://faculty.southwest.tn.edu/rburkett/GB%20Properties%20of%20Life.htm Thesefrogsall belong to adifferentspecies

  8. PANGEAhttp://geology.csupomona.edu/drjessey/class/Gsc101/pangea.gifPANGEAhttp://geology.csupomona.edu/drjessey/class/Gsc101/pangea.gif ~ 250 million years ago

  9. The Hardy-Weinberg Principle Gene frequencies in a population will remain CONSTANT as long as: • The population is LARGE • There is NO migration • There are NO mutations • Mating is RANDOM

  10. http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/sld013.htmhttp://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/sld013.htm http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/sld014.htm An Example of the Hardy-Weinberg Principle

  11. http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/sld015.htmhttp://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/sld015.htm http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/sld016.htm Another Example of the Hardy-Weinberg Principle

  12. Gradualism vs. Punctuated Equilibriumhttp://www.biol.andrews.edu/fb/spring/chap.24/2413.jpghttp://intranet.landmark.edu/blord/bio101/power_point/evolution_files/slide0001_image002.jpghttp://www.algonet.se/~tourtel/hovind_seminar/seminar_part4b.html

  13. Current Examples of Evolutionhttp://www.scienceinafrica.co.za/pics/07_2005/mosquito.jpghttp://www.news.wisc.edu/newsphotos/images/Petri_dish96_10.jpghttp://www.schoolscience.co.uk/content/4/biology/abpi/history/images/antibiotic.jpghttp://www.omafra.gov.on.ca/english/livestock/animalcare/amr/facts/04-081f1.jpg DDT-resistant mosquitoes Penicillin-resistant bacteria

  14. Industrial Melanismhttp://www.mhhe.com/biosci/esp/2001_gbio/folder_structure/ev/m2/s1/assets/images/evm2s1_8.jpghttp://www.micro.utexas.edu/courses/levin/bio304/popgen/moths.gif

  15. Can living organisms come from nonliving things? Francesco Redi’s Experiment(1600s) http://us.inmagine.com/168nwm/itstock/itf139/itf139053.jpghttp://www.wonderquest.com/images/2003-10-31-house-fly.jpghttp://www.slic2.wsu.edu:82/hurlbert/micro101/images/maggots.gif

  16. Louis Pasteur(1860) put an end to the idea of spontaneous generationhttp://vilenski.org/science/notebook/unit1/historyoflife/pastuer_image.jpghttp://www.foundersofscience.net/images/pswanflsk.JPG Swan Flask

  17. Earth’s Primitive Atmospherehttp://planete-terre.tripod.com/images/preca.jpg H2 H2O CH4 NH3

  18. Earth’s Modern Atmospherehttp://wps.prenhall.com/wps/media/objects/476/488316/Instructor_Resources/Chapter_06/FG06_04.JPGhttp://www.msnucleus.org/membership/html/jh/earth/atmosphere/images/3oxygen.gif (O3) H2O N2 O2 CO2

  19. Miller & Urey’s Experiment(1953)http://physics.uoregon.edu/~jimbrau/BrauImNew/Chap28/FG28_02.jpg H2 H2O CH4 NH3

  20. Coacervates=the 1stliving organismshttp://www.daviddarling.info/images/coacervate.jpghttp://projects.edtech.sandi.net/miramesa/Organelles/coacervate.htmlhttp://instruct1.cit.cornell.edu/courses/biog105/pages/demos/106/unit04/media/early-prebionts.1.jpg

  21. Oldest Traces of Lifehttp://bill.srnr.arizona.edu/classes/182/oldestlife.HTM The oldest known traces of life. A 3.5 billion year-old fossilized photosynthetic bacterium similar to contemporary cyanobacteria(blue green algae)from Western Australia. New discoveries have pushed the origin of cellular organisms further into the past, leaving less time for pre-cellular phases of evolution.

  22. --- Anaerobic Cell Respiration (Fermentation) enzymes glucose→alcohol+CO2+energy --- Photosynthesis (Autotrophs) enzymes CO2+ H2O +light→glucose+O2 --- Aerobic Cell Respiration (Aerobes) enzymes glucose+O2→CO2+H2O+energy

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