Only particles smaller than ________ µm in diameter reach the lungs
A) 10
B) 20
C) 30
D) 40
Answer: A
Biology & Microbiology
You might also like to view...
Which type of phage always lyses its host cell?
A. Temperate B. Lysogenic C. Virulent D. Prophage
Biology & Microbiology
Colds are the MOST infectious viral diseases
Indicate whether the statement is true or false.
Biology & Microbiology
Cork cambium produces ____
a. vascular tissue b. heartwood c. vascular cambium d. sapwood e. secondary epidermis
Biology & Microbiology
Which of the following is considered to be a hunger peptide?
(a) neuropeptide Y (b) glucagon (c) bombesin (d) somatostatin
Biology & Microbiology