A musical scholar coined the term 'leitmotif' in 1871, to describe a recurring musical tag in a German opera. What was the title of that opera? * A) Der Freischütz

B) Tristan und Isolde

C) The Marriage of Figaro

D) The Beggar's Opera

Which best describe the role of xylem in a vascular plant? a. transfer of glucose from leaves into a plant b. transfer of water from roots into a plant c. transfer of photons through leaves of a plant d. transfer of chloroplasts through a plant