It is true regarding normal microbial flora present on skin and mucous membrane that: (A) It cannot be eradicated by antimicrobial agents, (B) It is absent in the stomach due to acidic pH, (C) It establishes in the body only after the neonatal period, (D) The flora in the small bronchi is similar to that of the trachea
Answer is A. It is present in stomach soon after food. It establishes on body during labour and not after neonatal period. Lower respiratory tract ie below trachea is sterile.