Final answer:
Cystic fibrosis is a genetic disease that affects the lungs, liver, pancreas, and intestines. It causes breathing difficulties, chronic lung infections, and malabsorption of nutrients.
Step-by-step explanation:
Cystic fibrosis (CF) is a genetic disease that affects the lungs, liver, pancreas, and intestines. It is caused by a defective gene, which leads to the production of thick and sticky mucus in the respiratory and digestive organs. This can result in breathing difficulties, chronic lung infections, malabsorption of nutrients, and other health issues.