Question

The E. coli that normally live in the human large intestines and produce vitamin K that the body uses would be best termed a _____ relationship.

A) Mutualistic
B) Commensalistic
C) Parasitic
D) Pathogenic

Answer 1

The E. coli that live in the human large intestines and produce vitamin K have a mutualistic relationship with humans.

Step-by-step explanation:

The E. coli that normally live in the human large intestines and produce vitamin K that the body uses would be best termed a Mutualistic relationship. Humans have a mutualistic relationship with certain strains of Escherichia coli (E. coli) found in the gut. E. coli relies on intestinal contents for nutrients, and humans derive certain vitamins from E. coli, particularly vitamin K, which is required for the formation of blood clotting factors.