Q. Physiological barrier which prevents entry of microorganism in our body is/are
A) Acid in the stomach
B) Saliva in the mouth
C) Tears from eyes
D) All of these
Explanation
Physiological barriers Acid in the stomach, saliva in the mouth, tears from eyes all prevent microbial growth
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.