pls helpppppppppppppppppppppppppppppppppppppppppppppppppppDevon has cystic fibrosis or CF. It is an inherited condition that causes his body to produce excess mucus and lower than normal levels of digestive enzymes. A person with CF often experiences the following symptoms:

· frequent lung infections

· poor energy level

· low appetite

Although all of Devon’s body systems are affected by cystic fibrosis, it is mainly a disorder of which two body systems?