restriction. n. 1. something that restricts; a restrictive measure, law, etc. 2. the act of restricting or the state of being restricted. 3. (Logic) logic maths a condition that imposes a constraint on the possible values of a variable or on the domain of arguments of a function.
The primitive gut that forms during gastrulation in the developing embryo is known as the archenteron or the digestive tube.It develops into the digestive tract of an animal.ach is controlled by the dorsal blastopore, and primitive node (also known as Hensen's node), respectively. During Gastrulation, the Archenteron develops into the digestive tube, with the blastopore developing into either the mouth (Protostome) or the anus (Deuterostome).
Source: http://www.naturalhealth365.com/natural_cures/0877_phage_therapy.html. (NaturalHealth365) The digestive tract is loaded with trillions of microorganisms that form a natural ecosystem commonly called the gut flora. Everyday our body must maintain a certain balance of progenic and pathogenic organisms.his is a key part of the bacterial warfare that is going on within our bodies and plays an enormous role in our overall health. Individuals with irritable bowel disorder (IBS), Crohnâs disease and ulcerative colitis have a severely disrupted gut flora and a breakdown in the mucosal lining of their gut.