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What prevents micro evolution from becoming macro evolution

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Author Topic:   What prevents micro evolution from becoming macro evolution
frako
Member (Idle past 328 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010

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Message 1 of 25 (590298)
11-07-2010 1:16 PM

What is the fine line that separates micro evolution from macro evolution. What is the biological or logical barrier that prevents micro evolution from becoming macro evolution.
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In science the terms are used for descriptive purposes though macro evolution is only the combination of lots of micro evolutions.
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While creationists use the terms to describe 2 totally different processes.
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So what is that fine magic line that micro evolution cannot cross, why cant it cross it, and what evidence supports that.
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 Message 3 by slevesque, posted 11-07-2010 5:06 PM frako has replied
 Message 11 by Rrhain, posted 11-07-2010 8:07 PM frako has replied
  
frako
Member (Idle past 328 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010

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Message 13 of 25 (590412)
11-08-2010 4:58 AM 		Reply to: Message 3 by slevesque
11-07-2010 5:06 PM

Creationist will often complain when evolutionist use examples of micro-evolution to prove that macro-evolution will happen, because it simply does not discard the possibility that accumulating mutations could lead to genetic meltdown.
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That is bullshit, because anything that might hinder the fitness of the species gets "filtered" out by natural selection.
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Well in almost any species that is there is one exception human ever since our advances in medicine we kinda went around natural selection. If you have bad gens that might lead to Diabetis you do not die young you get insulin and they tell you what you can eat, and if you get bad geens for something else you can get treated for it so we are able to pass on the bad mutations more easely than any other animal.
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frako
Member (Idle past 328 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010

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Message 14 of 25 (590413)
11-08-2010 4:59 AM 		Reply to: Message 11 by Rrhain
11-07-2010 8:07 PM

My point exactly.
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frako
Member (Idle past 328 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010

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Message 16 of 25 (590416)
11-08-2010 5:18 AM 		Reply to: Message 15 by Dr Jack
11-08-2010 5:14 AM

there is good reason to think that the description of macroevolutionary patterns of evolution needs additional mechanisms.
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why?
and what additional mechanisms?
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