Despite the variety of their physiological function and differences in physical properties--silk is a flexible fiber, horn a tough rigid solid, and the enzyme pepsin water soluble crystals--proteins are sufficiently similar in molecular structure to warrant treating them as a single chemical family.
Disney's 'Tower of Terror' Closing to Make Way for New 'Guardians of the Galaxy' Ride. Looks like another Disney attraction is joining its sizable graveyard of defunct rides.
River Country closed its doors in 2001 and is now home to waterless slides and overgrown foliage. Like Discovery Island, it is off-limits to guests visiting Walt Disney World. It seems that abandoned attractions encourage a certain sense of adventure and intrigue in some courageous types.