I think they are all biotic factors..hmm if not take out whichever sounds the most not fitting.
The answer is community. A community is a group of people living in the same place.
Answer:
As the stomach contents pass from the stomach to the small intestine, their acidity is rapidly neutralized by the addition of HCO3- produced by the pancreasa good thing, too, because the mucosa of the small intestine has no other protection against HCl.
I think it C hope this helps
