Since you have not presented any choices of diseases for the question, I'll just enumerate some conditions that would lead to damage of respiratory system. The conditions that are most likely to occur if the cilia in our respiratory system are:
-Smoker's cough
-Emphysema
-Lung cancer
-bronchitis
Hello there.
What is the most densely populated region in the u.s.?
Answer: <span>Northeast</span>
Fighting countinued after the Spanish forces in Cuba surrendered in Puerto Rico.