General functions of the integumentory system: Protection, sensation, temperature regulation, vitamin D production, Excretion: 3 Layers of skin: Epidermis- top, superficial, epithelial Dermis- deep layer of connective tissue Subcutaneous tissue- not part of skin, loose connective tissue that connects to underlying layers From deepest to most superficial, name and describe the five strata of epidermis
North American X-15. If the type of engine is not limited to jet-powered engines, then the North American X-15 is the fastest airplane. Powered by a rocket engine, the X-15 is said to have reached a speed of 4,520 miles (7,274 km) per hour. Like the X-43, it is launched mid-air from a B-52.
Fastest aircraft, fastest jet, fastest airplane, fastest plane, fastest jet plane, fastest airplane in the world, fastest aircraft in the world, fastest jet aircraft, fastest rc jet, and other fastest airplanes, speed records, and a guide to the fastest radio control airplanes.43A Scramjet fastest airplane - 7,500 mph. It is the world's fastest air breathing engine vehicle and is pilotless. The record was set on 11/16/2004 when the X-43A was launched by a booster rocket at 40,000 feet from a B-52.