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.
Walt Disney World is closing at 5 p.m. Thursday and will remain closed Friday. Fort Wilderness has been evacuated. The park is working with some guests who were scheduled to stay at the Polynesian Village bungalows and Saratoga Springs treehouse villas.