TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: WHO PLAYED 'EM? 
Clue: Joanie Cunningham

SOLUTION: erin moran

PROBLEM: Category: IMPOSSIBLE 
Clue: (AUDIO Daily Double):  Impossible as it may sound, '60s sitcom star heard here:  "To dream, the impossible dream, to fight the unbeatable foe...."

SOLUTION: jim nabors

PROBLEM: Category: BIOLOGY 
Clue: This term for tissue that takes nutrients through a plant also refers to human blood vessels

SOLUTION:
vascular