CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR...
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Transcript of CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR...
![Page 1: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/1.jpg)
CHAPTER 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
![Page 2: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/2.jpg)
CHAPTER 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
![Page 3: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/3.jpg)
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.
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I have called this principle, by whicheach slight variation, if useful, is preserved,
by the term Natural Selection.
—Charles Darwin from "The Origin of Species"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.htUsed by permission of Darwin Day Celebration (at DarwinDay.org), 2006
www.darwinday.org/englishL/life/beagle.html
http://evolution.berkeley.edu/evolibrary/home.php
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CHAPTER 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
![Page 6: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/6.jpg)
EVIDENCE OF EVOLUTION
• STRUCTURAL ADAPTATIONS– MIMICRY– CAMOUFLAGE
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.phphttp://science.howstuffworks.com/animal-camouflage2.htm
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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.
![Page 8: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/8.jpg)
WHAT OTHER INDUSTRIES WOULD BE WORRIED ABOUT RESISTANCE?
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
![Page 9: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/9.jpg)
OTHER EVIDENCE OF EVOLUTION
• FOSSILS
• ANATOMY
– HOMOLOGOUS STRUCTURES
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
![Page 10: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/10.jpg)
OTHER EVIDENCE OF EVOLUTION
• FOSSILS
• ANATOMY
– HOMOLOGOUS STRUCTURES
– ANALOGOUS STRUCTURES
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
![Page 11: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/11.jpg)
OTHER EVIDENCE OF EVOLUTION
• FOSSILS
• ANATOMY
– HOMOLOGOUS STRUCTURES
– ANALOGOUS STRUCTURES
– VESTIGIAL STRUCTURE
– EMBRYOS
WHAT IS ANOTHER EXAMPLE OF VESTIGIAL STRUCTURES?
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
![Page 12: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/12.jpg)
OTHER EVIDENCE OF EVOLUTION
• FOSSILS
• ANATOMY
– HOMOLOGOUS STRUCTURES
– ANALOGOUS STRUCTURES
– VESTIGIAL STRUCTURE
– EMBRYOS
• BIOCHEMISTRY
– WHAT 2 THINGS?
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
![Page 13: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/13.jpg)
CHAPTER 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
![Page 14: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/14.jpg)
MECHANISMS FOR EVOLUTION
• DO POPULATIONS OR INDIVIDUALS EVOLVE?DO POPULATIONS OR INDIVIDUALS EVOLVE?• WHAT IS A GENE POOLWHAT IS A GENE POOL• HOW CAN THE GENE POOL CHANGE?HOW CAN THE GENE POOL CHANGE?
– MUTATIONMUTATION– GENETIC DRIFTGENETIC DRIFT– GENE FLOWGENE FLOW
• WOULD THESE THINGS EFFECT A LARGE POPULATION WOULD THESE THINGS EFFECT A LARGE POPULATION OR A SMALL POPULATION MORE?OR A SMALL POPULATION MORE?
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
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Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
ALL IMAGES: http://evolution.berkeley.edu/evolibrary/home.php
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CHAPTER 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
![Page 17: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/17.jpg)
WHAT IS NATURAL SELECTION?
NOW IT’S YOUR TURN – DRAW STABILIZING, DIRECTIONAL AND DISRUPTIVE SELECTION
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.http://evolution.berkeley.edu/evolibrary/home.php
![Page 18: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/18.jpg)
CHAPTER 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
![Page 19: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/19.jpg)
WHAT IS SPECIATION?• GEOGRAPHIC ISOLATIONGEOGRAPHIC ISOLATION
• REPRODUCTIVE ISOLATIONREPRODUCTIVE ISOLATION
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
![Page 20: CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach.](https://reader035.fdocuments.in/reader035/viewer/2022062304/56649e415503460f94b332f4/html5/thumbnails/20.jpg)
WHAT IS SPECIATION?
• GEOGRAPHIC ISOLATIONGEOGRAPHIC ISOLATION
• REPRODUCTIVE ISOLATIONREPRODUCTIVE ISOLATION
• GRADUALISMGRADUALISM
• PUNCTUATED EQUILIBRIUMPUNCTUATED EQUILIBRIUM
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
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WHAT IS SPECIATION?
• GEOGRAPHIC ISOLATIONGEOGRAPHIC ISOLATION
• REPRODUCTIVE ISOLATIONREPRODUCTIVE ISOLATION
• GRADUALISMGRADUALISM
• PUNCTUATED EQUILIBRIUMPUNCTUATED EQUILIBRIUM
• DIVERGENT EVOLUTIONDIVERGENT EVOLUTION– ADAPTIVE RADIATIONADAPTIVE RADIATION
• CONVERGENT EVOLUTIONCONVERGENT EVOLUTION
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
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ADAPTIVE RADIATION – AN EXAMPLE OF DIVERGENT EVOLUTION
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php
http://www.vanderbilt.edu/AnS/english/Clayton/Galapago_finches.gif
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CONVERGENT EVOLUTION – WHAT IS AN EXAMPLE?
Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.
http://evolution.berkeley.edu/evolibrary/home.php