Description:
Evolution versus creationism (sometimes hot!). (Moderated)
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Five Steps in the Evolution of Multicellularity in Animals.
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Somebody suggested some time ago that I rewrite the five steps of multicellular evolution down, starting a separate thread. This way, we could eliminate all the baggage from the previous discussion. That seems like a good idea to me. So here goes.
The picture that I have for the evolution of multicellularity in animals... more »
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Compromise model for Intelligent Design?
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I am reading an online book on Python, which essentially defines an
Algorithm as a set of steps that require no intelligence to achieve a
desired goal:
[link]
An algorithm has no goal, but its human designer usually does. Thus if
evolution is seen as an algorithm, the process observed would be without... more »
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The Heart and Soul of Emergence and Creation!
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Investigations by Stuart Kauffman
The heart of this view of the emergence of life lies in the fact that as the
diversity of organic molecules in a system increases, the diversity of
reactions by which they transform to one another increases very much faster.
In turn, this means that for a wide distribution of assumptions about which... more »
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Another question about photosynthesis
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Cyanobacteria, and by extension green plants, make use of the red and blue
ends of the spectrum while discarding the middle. (Hence the popularity
of garish red & blue LED lighting in the latest, most high-tech forms of hydroponics.) Now, some algae contain other pigments, such as rhodophyta.... more »
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Best debate so far...
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The Origin of Life: Evolution vs. Design
[link]
More debates should be done like this (not so stupid religious guy)
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mark your calenders (Harter Day)
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We are getting close to the first official Harter Rememberance Day (6-29). What we do with it is up to us. Harter was a cool guy IMO. Anything works! A punfest would suffice.
[link]
-- *Hemidactylus*- Hey, let's be careful out there (HSB):... more »
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gentic diversity and natural selection.
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A couple of quotes from comments to
[link]
QUOTE
1. Yes, this is the problem with Tasmanian devils. Their genetic diversity is so low that the cancer cells are not recognized as external, which allows them to grow tumors in another individual.... more »
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test new server
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Testing a new server. Why is a raven like a writing desk?
DJT. Fjord and all that
--- news://freenews.netfront.net/ - complaints: n...@netfront.net ---
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Dinoflagellate cysts are like fertilized eggs in animals
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Somebody, which is a pronoun not a name, pointed out that two haploid cells of dinoflagelletates come together to form a diploid cyst. He then misstated my understanding of the theory as saying that in the first animal, the diploid cells came together to form aggregate bodies.
This is not how I picture the aggregate body of the first animal coming together. The aggregate body of the first animal didn't form from multiple cysts. The "cyst", which in now called a fertilized egg, reproduces asexually for a few generations. The main difference between a dinoflagellate and the first animal would be that the cells during this asexual stage stick together.... more »
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