evidence for evolution
DESCRIPTION
Evidence For Evolution. Fossil Record (transitional fossils & missing links) Geographic Distribution Homologous Structures Genetic Records Embryology Vestigial Structures Biochemistry & Molecular Biology Explains the world we see - divergent, convergent, & coevolution. - PowerPoint PPT PresentationTRANSCRIPT
Evidence For Evolution
1. Fossil Record (transitional fossils & missing links)2. Geographic Distribution3. Homologous Structures4. Genetic Records 5. Embryology6. Vestigial Structures7. Biochemistry & Molecular Biology8. Explains the world we see - divergent, convergent, & coevolution
1-The Fossil Record
1-The Horse
1-Whale Evolution
1-Elephant Evolution
1-Camel Evolution
1 Missing Links
Archaeopteryx
Whale
2 - Geographic Distribution
Distantly Related but Similar
Closely Related but Different
Darwin’s Finches
3-Homologous Structures
3-Homology
4-Genetic Evidence
Signs and Lines 3 Min.http://www.youtube.com/watch?v=_Ol492CLkdY
5-Embryology – Theory of Recapitulation
Theory of Recapitulation: developing embryo go through stages resembling their ancestry evolution.
The Theory: Ontogeny Recapitulates PhylogenyA discredited but famous theory 1866
Real Evidence – similarities in early stages indicates a similar ancestry, that appears briefly, but then continues onward with variation – gills / legs / tails – Hox Genes
5-Embryology
Pig Calf Rabbit Human
6-Vestigial OrgansAn organ that no longer performs its original function
Top 10:1. Human Appendix2. Male Nipples3. Fake sex in lizards - all female - some act like males4. Sexual organs in dandelions5. Wisdom Teeth6. Blind Fish - isolated population with original in light7. Coccyx - human tail bone8. Erector Pill - muscle for erecting hair9. Hind leg bones of whales10.Wings of flightless birds
Other: hair
7-Biochemistry & Molecular Biology
Same core molecules at work
The chemistry for life is the same or incredibly similar in very dissimilar species
8-Adaptive Radiation
8-Divergent Evolution
8-Convergent Evolution
8-Coevolution