United Parcel Service (well known as UPS) is one of the world's largest package delivery company in the United States. UPS was founded in 1907 as a messenger company and is often misknown as United Postal Service. UPS is well known for its chocolate-colored vans. Rivals include Purolator[?] and FedEx. The UPS Logo was designed by Paul Rand
... chain. This is a series of proteins embedded in a biological membrane that transfers high-energy electrons from one to another, accomplishing various activities along ...