Digestive enzyme. Digestive enzymes are enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body.
Club-level seating is open to the elements, as opposed to the entirely enclosed luxury boxes, which gives more of an outdoor impression at roofless and open-roof stadiums and arenas. Club-level seating is normally bought on a contract basis to allow for maximum profit on the part of the venue.
Most bicycles have one seat, while many motorcycles have two seats. If your teacher invites you to Take a seat, he means Find a chair and sit in it. There are seats in cars and airplanes, around tables, in restaurants, and in movie theaters. As a verb, seat means help someone find a place to sit, the way an usher seats audience members at a concert.