Q. First line of defence include
A) Skin
B) Mucous coating
C) Lysozyme secretion from eyes
D) All of the above
Explanation
The body’s first line of defense against pathogens uses mostly physical and chemical barriers such as sweat, skin tears mucus, stomach acid, and so on
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.