Biological diversity: how did it originate

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Biological diversity how did it originate?

• Special creation
• 1. Fixity of species
• 2. Independently created
• No relationships among species
• 3. Origins are recent
• Movement called creation science attempts to
  legitimize special creation.
• Argument is based on idea of irreducible
  complexity.
• Intelligent Design.

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Bacterial flagellum irreducible complexity?
E. coli Mobility
Co-option
Yersinia Type III Export System
30 protein components 20 proteins involved in
assembly
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• Aristotle scale of nature
• Ranking system
• Idea subsequently altered by
• evolutionists such as Lamarck.
• Ranking represents evolutionary
• direction
• Higher Lower forms
• But, one tenent of creationism
• Is fixity of species
• All created at the same time
• Persist unchanged

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Phyletic evolution
Cladistic evolution
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Refuting the fixity of species
Natural selection and adaptation Soapberry
bug Jadera haematoloma
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Evidence countering the creation myth
Aspidoscelis septemvittata ?
1
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Aspidoscelis marmorata ?
Aspidoscelis tesselata (2n) parthenogenetic)
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Temporal sequence
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Aspidoscelis neotesselata (3n parthenogenetic)
Aspidoscelis tesselata
Aspidoscelis sexlineata ?