Question

question 2 of 10
what is the first defense the body has against a virus?
a. macrophages
b. t cells
c. mucus
d. lymphocytes

Explanation:

The body's first line of defense against pathogens (including viruses) is the physical and chemical barriers. Mucus is part of the physical barrier. It traps pathogens, preventing them from entering the body. Macrophages, T - cells, and lymphocytes are part of the immune system's internal defenses (second and third lines of defense). Macrophages are phagocytic cells that engulf pathogens. T - cells and lymphocytes are involved in specific immune responses (adaptive immunity). So, mucus (a physical barrier) is the first defense.

Answer:

C. Mucus