ib biology 5.1-5.2 slides: evolution & natural selection
TRANSCRIPT
Evolution & Natural Selection (5.1-5.2)IB Diploma Biology
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
Speciation
Evidence from Patterns of Geographical Variation
The Finches of Daphne Major
Bibliography / Acknowledgments
Jason de Nys
Chris Paine