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Migration theory

migration theory

An obsolete theory that sympathetic ophthalmia is caused by a migration of the pathogenic agent through the lymph channels of the optic nerve.


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Re: Out of Africa Vs. Multiregional theory

I'm not certain that the 'Out of Africa' theory precludes multiregional migration, in fact I think it's predicated on it. The qualifier is that it started in Africa. Of course ...

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by NMLevesque
Fri Nov 22, 2013 6:01 pm
 
Forum: Evolution
Topic: Out of Africa Vs. Multiregional theory
Replies: 2
Views: 1988

Re: Why do Africans have large noses and lips?

... But after reading all the comments, especially robpdx's, my personal theory, which I elaborated about English people vs. French people's lips, ... looks in a population to a possible etiology of founder effect, migration and basically gene drift. You dont always have to go the people ...

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by david23
Sun Jul 08, 2012 2:46 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 31
Views: 217719

Theories - Origin of Life

... can be the result of random mutations, which according to darwinian theory they would have to be, unless of course one is happy to play with ... is adapting now (and which does not have other options such as migration), is likely to be in great difficulty. In fact, I can tell you ...

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by AstraSequi
Tue Mar 27, 2012 2:42 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929815

Re: Theories - Origin of Life

... about), then please give me the page and post number.  According to the theory, the mutations upon which this process rests is Random. To expect, ... adapting now (and which does not have other options such as migration), is likely to be in great difficulty. In fact, I can tell you ...

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by scottie
Mon Mar 19, 2012 4:42 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929815

Re: Theories - Origin of Life

... about), then please give me the page and post number. According to the theory, the mutations upon which this process rests is Random. To expect, ... is adapting now (and which does not have other options such as migration), is likely to be in great difficulty. In fact, I can tell you ...

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by AstraSequi
Sun Mar 18, 2012 11:06 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929815
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