Multiple Choice
The lungs are protected from microorganisms by
A) the ciliated epithelial cells.
B) lysozyme in mucus.
C) phagocytic action of alveolar macrophages.
D) All of the choices are correct.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q36: The lower genitourinary tract is usually free
Q58: Recent research has demonstrated a correlation between
Q59: Which of the following is not part
Q60: The relationship between Trichonympha protozoa and its
Q61: How are termite-related protists and aphid-related proteobacteria
Q62: The specialized structure in a tube worm
Q65: _ is a predator that bores a
Q66: Which of the following would you not
Q67: In mutualism<br>A)the mutualist is dependent on the
Q68: A microbiologist studying the human microbiome is