Why are bacteria abundant in the large intestines but not in the stomach?
A) Food enters the stomach first and does not spend much time there.
B) The stomach wall contains so much lymphoid tissue that it destroys all bacteria there.
C) The intestine is much warmer and moister, encouraging bacterial growth.
D) Secretions of parietal cells kill bacteria in the stomach.

Question

Quizplus · Accepted Answer

The stomach secretes hydrochloric acid from parietal cells, creating a highly acidic environment that kills most bacteria, whereas the large intestine provides a more suitable environment for bacterial growth.

Why Are Bacteria Abundant in the Large Intestines but Not