Normal flora have beneficial functions in the host. Which of the following is NOT a true beneficial function of these flora?
A. Production of antibiotics to check the growth of any pathogenic bacteria.
B. Participation in the metabolism of food products.
C. Stimulation of the immune response.
D. Protection against infections with highly virulent microorganisms by competing with the latter for food and shelter.
E. Provision of essential growth factors, e.g., vitamins
Ans: A. Production of antibiotics to check the growth of any pathogenic bacteria.
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