Why do you think that the intestines have one of the body’s most well-developed sets of lymphoid tissues? A less diverse gut microbiome has been linked to a reduction in healthy immune responses. Why...

Why do you think that the intestines have one of the body’s most well-developed sets of lymphoid tissues?

A less diverse gut microbiome has been linked to a reduction in healthy immune responses. Why might that be?

Suggest some reasons for so much redundancy and interactivity of immune responses.