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Author Topic:   Stasis and Evolution
CosmicChimp
Member
Posts: 311
From: Muenchen Bayern Deutschland
Joined: 06-15-2007


Message 11 of 61 (530489)
10-13-2009 5:58 PM
Reply to: Message 4 by RAZD
10-05-2009 7:00 PM


Re: Make my day, Punk!
Greets RAZD,
You need to fix this bit.
... as all mutations that would alter the fitness to a lower level are selected against rather than allowed.
This is generally true as a cause for the opposite as well as what you are trying to show a cause for.

This message is a reply to:
 Message 4 by RAZD, posted 10-05-2009 7:00 PM RAZD has replied

Replies to this message:
 Message 12 by RAZD, posted 10-13-2009 7:56 PM CosmicChimp has replied

  
CosmicChimp
Member
Posts: 311
From: Muenchen Bayern Deutschland
Joined: 06-15-2007


(1)
Message 13 of 61 (530508)
10-13-2009 8:31 PM
Reply to: Message 12 by RAZD
10-13-2009 7:56 PM


Re: Make my day, Punk!
I think it is true what you have stated in both of you posts, but my concern is that you have given as reason or causation for stasis (of the phenotype of a population) the exact same reason/cause that is true for change (of the phenotype). The cause as I think you may be stating it is Natural Selection. But I think the true cause is that the probability of achieving a beneficial mutation has been reduced to near zero in the case of stasis in an unchanging ecology; whereas in a new changed ecology a mutation surely has a higher chance of being beneficial compared to the other case.
You have in effect said, Natural Selection is the cause for staying the same and the cause for changing, I don't see the distinction that has to be drawn in order show what causes the one over the other event.
Edited by CosmicChimp, : clarity
Edited by CosmicChimp, : clarity, last edit

This message is a reply to:
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 Message 14 by RAZD, posted 10-13-2009 9:39 PM CosmicChimp has seen this message but not replied

  
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