Question

1. what is the main role of the innate immune response?

a. to produce red blood cells
b. to produce plasma
c. to replace old cells with new ones
d. to patrol the body and respond to invaders

Explanation:

• Option A: Red blood cell production is by the hematopoietic system, not innate immunity.
• Option B: Plasma production is part of blood composition, not innate immune role.
• Option C: Cell replacement is a general cellular turnover process, not specific to innate immunity.
• Option D: The innate immune system (e.g., macrophages, neutrophils) patrols the body and responds to pathogens/invaders as the first - line defense.

Answer:

D. To patrol the body and respond to invaders