ib biology 5.1-5.2 slides: evolution & natural selection
TRANSCRIPT
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Evolution & Natural Selection (5.1-5.2)IB Diploma Biology
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Pentadactyl Limbs
Organism (type) Function of pentadactly limb
Crocodile (reptile) Walk or crawl on land / Hind legs used for swimming
Penguin (bird) Hind limbs for walking / forelimbs for swimming
Echidna (mammal) All four limbs used for walking / Forelimbs for digging
Frog (amphibian) All four limbs used for walking / Hindlimbs for jumping
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Speciation
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Evidence from Patterns of Geographical Variation
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The Finches of Daphne Major
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Bibliography / Acknowledgments
Jason de Nys
Chris Paine