Question

1. a genetic disorder characterized by excessive secretions of thick mucus that obstruct passageways is called: atelectasis. cystic fibrosis. pertussis. emphysema.

Explanation:

Atelectasis is lung collapse; pertussis is whooping cough (bacterial infection); emphysema involves damaged alveoli. Cystic fibrosis is a genetic disorder causing thick mucus obstruction in passageways.

Answer:

cystic fibrosis.