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Bfs bio Evolution intro
- 1. 2006-2007 by Natural Selection Evolution…
- 10. Homolog structure: Similar structure and position, but different function Courtesy of Prof. Ken Sytsma http://evolution.berkeley.edu Analog structure: Similar function, but different origin
- 11. It’s Critical (and often difficult) to distinguish Homology from Analogy Homology is the key to establishing phylogenies.
- 12. Distinguishing Homology from Analogy Analogy is similarity due to convergent evolution. Analogy mistaken for homology confuses phylogenies.
- 13. Another Set of Analogies Created by Convergent Evolution Ocotillo of the US southwest Allauidia of Madagascar
- 17. How does that work? Variation Over-Production & Competition Natural Selection Nature selects the ones that “fit” the environment better … survive & reproduce Adaptation
- 19. Survival & Reproduction of the fittest not the strongest… not the bravest… not the fastest… not the biggest… … the fittest! the traits that help an organism fit the environment better to survive & reproduce Adaptations
- 21. Survival & reproduction of the fittest bug…
- 22. 2006-2007 Don’t be a Dodo… Ask Questions !!
Editor's Notes
- How to explain similarities bt organisms? how are related these organisms according to their similitude ? How did they acquire these characteristics? Some terminology was applied in an attempt to define these observed patterns
- Macroevolution 10/07/11 G. Podgorski, Biol. 1010
- Macroevolution 10/07/11 G. Podgorski, Biol. 1010
- Macroevolution 10/07/11 G. Podgorski, Biol. 1010
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