Question

25 POINTS!!!!!!!

A pathogen that enters the respiratory track would have to get past which of the following respiratory defenses before being able to infect the bloodstream?

a. Cilia and red blood cells
B. Cilia and white blood cells
C. Flagella and white blood cells
D. Flagella and red blood cells

Answer 1

B. The Cilia and The white blood cells. White blood cells fend of pathogens along with the cilia which sorts through things entering your body.

Answer 2

B. Cilia and white blood cells