Which of the Following are NOT Found in the Gastrointestinal

Question

Which of the following are NOT found in the gastrointestinal tract of healthy humans?
A) Bacteroides
B) Clostridium
C) Escherichia coli
D) protists

Accepted Answer

Protists are not typically found in the gastrointestinal tract of healthy humans. This is because they are eukaryotic organisms that are more typically associated with environments such as freshwater or soil. The other options listed are all types of bacteria that are commonly found in the human gut microbiome.