Question

Natural immunity means ___.

• A. Protection by means of physical barrier such as skin.
• B. Protection by certain chemicals
• C. Protection by antibiotics
• D. Protection by white blood cells.

Answer 1

Answer: (A), (B), (D)

The correct options are
A

Protection by means of physical barrier such as skin.

B

Protection by certain chemicals

D

Protection by white blood cells.

Natural immunity, also called innate immunity means the immunity that every human being carries by birth. When a child is born, he/she possesses a certain level of immunity and this immunity is largely conferred by different types of cells, usually called as white blood cells. Mechanisms of innate immunity include physical barrier by skin, certain chemicals and white blood cells.