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Primitive gut


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Stem Cells and Cell division?

... and blood, and the endoderm (inner layer) forms the gastrointestinal tract of the future mammal. Early in embryogenesis, some cells migrate to the primitive gonad or genital ridge. These are the precursors to the gonad of the organism and are called germinal cells. These cells are not derived from ...

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by RZachary1
Wed Jan 14, 2015 5:51 am
 
Forum: Cell Biology
Topic: Stem Cells and Cell division?
Replies: 6
Views: 5400

New theory of evolution

... more simple forms to more complex and developed. Eleven billions years took evolution to reach biological phase, but only three to reach first primitive organisms, and only several hundred millions to reach high developed and later intelligent animals. It is rather sure that it is not only ...

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by SystemRGB
Fri Nov 14, 2014 11:45 pm
 
Forum: Evolution
Topic: New theory of evolution
Replies: 0
Views: 816

Humans are Deuterostomes. Right?..

... humans), the original dent (blastopore) becomes the anus, while the gut eventually tunnels through the embryo until it reaches the other side, ... out, there is no archenteron in human embryo at all. In fact, there are primitive node/streak/groove. Besides, that primitive groove is somehow connected ...

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by Siroggak
Tue Aug 12, 2014 4:46 pm
 
Forum: Human Biology
Topic: Humans are Deuterostomes. Right?..
Replies: 2
Views: 2141

Newbie question about the first life

Chapter XLZVIII The "primitive boundary" is simply the limit beteween the tiny droplet, globule, globulet, sphere or quasisphere and its surroundings. Those globules are colloidal, meaning that they're the kind of mixture called ...

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by piscilactovegetarian
Fri Feb 28, 2014 12:10 am
 
Forum: Molecular Biology
Topic: Newbie question about the first life
Replies: 14
Views: 19175

Newbie question about the first life

Thanks, piscilactovegetarian. You wrote: ¬ęBefore the first cell there must've been a far simpler structure isolated from its environment by a primitive boundary, but what led to this was not any entirely chemical process but "physical chemistry", a rearrangement of elements involving ...

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by Anonymous99
Tue Feb 25, 2014 1:34 pm
 
Forum: Molecular Biology
Topic: Newbie question about the first life
Replies: 14
Views: 19175
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