Answer:the build up of thick, sticky mucus that can damage many of the body's organs.
Explanation:
Cystic fibrosis is an inherited disease characterized by the buildup of thick, sticky mucus that can damage many of the body's organs. The disorder's most common signs and symptoms include progressive damage to the respiratory system and chronic digestive system problems.
Answer:Internet Surfing as it is popularly known means to go from one page to another on the Internet, browsing for topics of interest
Explanation:
A. Microorganisms can have both positive and negative effects on other organisms
