identify the part of the digestive tract that removes water and has a lot of bacteria living in it.

The part of the digestive tract that removes water and has a lot of bacteria living in it is the large intestine. The large intestine absorbs most of the remaining water from the indigestible food matter, solidifying it into feces. It also hosts trillions of bacteria (gut flora) that help break down some fibers, produce vitamins like vitamin K and B vitamins, and contribute to digestion through fermentation processes. This area includes the colon and rectum, where waste is formed and stored before elimination.