Bacteroidetes
The gastrointestinal tract in humans is made up of the mouth, pharynx, esophagus, stomach, small intestine, large intestine and anus. This is the path that food enters the body and waste matter leaves the body. The majority of microbes in the human body live in this gastrointestinal tract . Bacteroidetes can be found in all of the different parts of the gastrointestinal tract, even though the conditions in each part can be very different from each other.