The transmission of antibiotic resistance, toxicity, and allergenicity are all known to be major health risks associated with GM foods.
The pyloric sphincter is compose of smooth muscle and is located between the pylorus in the stomach and duodenum of the small intestine. In digestion, it serves as a valve controlling the flow of food thus it prevents the contents of small intestine backing up into the stomach.
There are two events,
A: the selection belongs to the specific species, or
A' : the selection does not belong to the specific species.
Coordinates muscles controlling breathing ..
Hope it helps.