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Summer 2006 Workshop in Biology and Multimedia for High School Teachers THEORY OF EVOLUTION Beth Mick - LESSON PLAN • DISCUSSION ON WHAT DOES THE WORD EVOLUTION MEAN? • LECTURE - PPT • SPECIATION ANIMATION - 2006 LS-HHMI • Breeding Bunnies Activity www.pbs.org/wgbh/evolution/educators/lessons/lesson4/act1notes.html • Candy Dish Selection: Author: Carol Tang http://www.ucmp.berkeley.edu/education/lessons/candy_dish.html Investigating Natural Selection Activity - • http://bob.nap.edu/html/evolution98/evol6-c.htm • CLASS DISCUSSION ON VIRUS EVOLUTION TO INCLUDE HIV Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. REFERENCES • Biology: The Dynamics of Life; Glencoe 2004 • • • • • • http://evolution.berkeley.edu/evolibrary/home.php http://www.hhmi.org/biointeractive/evolution/index.html http://www.accessexcellence.org/AE/AEPC/WWC/1995/ http://www.darwinday.org/englishL/life/beagle.html http://www.pbs.org/wgbh/evolution/index.html DR. LUE, LIFE SCIENCE-HHMI OUTREACH PPT. Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CHAP 15 – THE THEORY OF EVOLUTION • • • • • CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CHAP 15 – THE THEORY OF EVOLUTION • • • • • CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. http://evolution.berkeley.edu/evolibrary/home.php CHARLES DARWIN – 1809-1882 • ENGLISH • TRAVELED AROUND THE WORLD ON THE BEAGLE – FAMOUS IN THE GALAPAGOS ISLANDS • OBSERVED MANY SPECIES AND FOSSILS • WHY DID SOME SPECIES SURVIVE WHILE OTHERS BECAME EXTINCT? • NATURAL SELECTION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. http://evolution.berkeley.edu/evolibrary/home.php http://evolution.berkeley.edu/evolibrary/home.php www.darwinday.org/englishL/life/beagle.html www.darwinday.org/englishL/life/beagle.ht Used by permission of Darwin Day Celebration (at DarwinDay.org), 2006 I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection. —Charles Darwin from "The Origin of Species" http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CHAP 15 – THE THEORY OF EVOLUTION • • • • • CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. EVIDENCE OF EVOLUTION • STRUCTURAL ADAPTATIONS – MIMICRY – CAMOUFLAGE http://evolution.berkeley.edu/evolibrary/home.php http://science.howstuffworks.com/animal-camouflage2.htm Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. EVIDENCE OF EVOLUTION • STRUCTURAL ADAPTATIONS – MIMICRY – CAMOUFLAGE – MILLIONS OF YEARS • PHYSIOLOGICAL ADAPTATIONS – CHANGE IN A METABOLIC PROCESS – WHAT DO YOU HEAR ABOUT IN THE NEWS ABOUT SOME BACTERIA? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. http://evolution.berkeley.edu/evolibrary/home.php WHAT OTHER INDUSTRIES WOULD BE WORRIED ABOUT RESISTANCE? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. OTHER EVIDENCE OF EVOLUTION • FOSSILS • ANATOMY – HOMOLOGOUS STRUCTURES http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. OTHER EVIDENCE OF EVOLUTION • FOSSILS • ANATOMY – HOMOLOGOUS STRUCTURES – ANALOGOUS STRUCTURES http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. OTHER EVIDENCE OF EVOLUTION • FOSSILS • ANATOMY – HOMOLOGOUS STRUCTURES – ANALOGOUS STRUCTURES – VESTIGIAL STRUCTURE – EMBRYOS http://evolution.berkeley.edu/evolibrary/home.php WHAT IS ANOTHER EXAMPLE OF VESTIGIAL STRUCTURES? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. OTHER EVIDENCE OF EVOLUTION • FOSSILS • ANATOMY – HOMOLOGOUS STRUCTURES – ANALOGOUS STRUCTURES – VESTIGIAL STRUCTURE – EMBRYOS • BIOCHEMISTRY – WHAT 2 THINGS? http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CHAP 15 – THE THEORY OF EVOLUTION • • • • • CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. MECHANISMS FOR EVOLUTION • DO POPULATIONS OR INDIVIDUALS EVOLVE? • WHAT IS A GENE POOL • HOW CAN THE GENE POOL CHANGE? – MUTATION – GENETIC DRIFT – GENE FLOW • WOULD THESE THINGS EFFECT A LARGE POPULATION OR A SMALL POPULATION MORE? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. ALL IMAGES: http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CHAP 15 – THE THEORY OF EVOLUTION • • • • • CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. WHAT IS NATURAL SELECTION? NOW IT’S YOUR TURN – DRAW STABILIZING, DIRECTIONAL AND DISRUPTIVE SELECTION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CHAP 15 – THE THEORY OF EVOLUTION • • • • • CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. WHAT IS SPECIATION? • GEOGRAPHIC ISOLATION • REPRODUCTIVE ISOLATION http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. WHAT IS SPECIATION? • • • • GEOGRAPHIC ISOLATION REPRODUCTIVE ISOLATION GRADUALISM PUNCTUATED EQUILIBRIUM Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. WHAT IS SPECIATION? • • • • • GEOGRAPHIC ISOLATION REPRODUCTIVE ISOLATION GRADUALISM PUNCTUATED EQUILIBRIUM DIVERGENT EVOLUTION – ADAPTIVE RADIATION • CONVERGENT EVOLUTION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. ADAPTIVE RADIATION – AN EXAMPLE OF DIVERGENT EVOLUTION http://www.vanderbilt.edu/AnS/english/Clayton/Galapago_finches.gif http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. CONVERGENT EVOLUTION – WHAT IS AN EXAMPLE? http://evolution.berkeley.edu/evolibrary/home.php Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.