9_Macroevolution

9_Macroevolution - Macroevolution(24.4 25.5...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Macroevolution * (24.4, 25.5, 25.6) *evolutionary change at or above the species level
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Many believe in microevolution but not macroevolution “Would an infinite number of Darwinists, working for an indefinite period of time, eventually prove a single instance of evolution producing a new species?” - Stephen H. Webb, in a recent review of Michael Behe’s The Edge of Evolution (2007 )
Background image of page 2
3 QuickTimeª and a H.264 decompressor are needed to see this picture.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Critique of macroevolution: irreducible complexity Standard 5 part mouse trap
Background image of page 4
5 Rebuttal: Pieces of complex systems often have functions of their own 2 part mouse trap http://udel.edu/~mcdonald/mousetrap.html
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Ex) Bacterial flagellum made of parts that could serve other functions Similar to needle-like structures used to inject toxins Orgel’s second rule: Evolution is cleverer than you are.
Background image of page 6
Complex camera-type eye Pinhole camera-type eye Eye with primitive lens Patch of pigmented cells Eyecup Pigmented cells (photoreceptors) Epithelium Nerve fibers Fluid-filled cavity Epithelium Pigmented layer (retina) Optic nerve Pigmented cells Nerve fibers Cornea Cellular fluid (lens) Optic nerve Cornea Lens Optic nerve Retina Ex) Eyes with a range of complexity still function Complex camera-type eye Pinhole camera-type eye Eye with primitive lens Patch of pigmented cells Eyecup Pigmented cells (photoreceptors) Epithelium Nerve fibers Fluid-filled cavity Epithelium Pigmented layer (retina) Optic nerve Pigmented cells Nerve fibers Cornea Cellular fluid (lens) Optic nerve Cornea Lens Optic nerve Retina Fig. 25.24
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/30/2009 for the course BISC 120Lg taught by Professor 11:00-01:50pm during the Fall '06 term at USC.

Page1 / 33

9_Macroevolution - Macroevolution(24.4 25.5...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online