Answer :
Because E.Coli causes bowel movements and also aids in the digestion of food, we can conclude that E.Coli strains are harmful as well as beneficial.
Answer:
The correct answer is-E. Coli strains are harmful as well as beneficial
Explanation:
E. coli are the bacteria which have different strains and most of the strains of E. coli are harmless to humans and some live in a symbiotic relationship with humans in the human intestine.
In the intestine, they are present as normal microflora of the intestine and play important role in the digestion of food but some of the strains of E.coli that are not normal microflora of intestine and can be harmful to humans.
O157: H7 is the strain of E.coli when gets inside the human body through the food that can cause serious diarrhea and renal damage. Therefore E.coli strains are harmful as well as beneficial.