Best Answer: organ shut down means that the vital organs of our body like heart, kidneys, lungs and brain etc are failing or not receiving enough blood supply :) And when vital organs shut down, important bodily functions shut down too. The more organs that shut down, the greater the patient's risk of death.
The whale shark, the largest shark in the ocean, can reach a top speed of up to one body length per second. With a maximum size of 32.8 feet, the largest whale shark can reach a top speed of 22.4 miles per hour. Learn more about Sharks. Sources:
Now the fastest shark is the short fin Mako, clocked at only 32 mph, but has been said to swim at speeds of over 60 mph. The fastest marine animal would be the Sailfish, but again in is only clocked at 68 mph. It could in fact go much faster than that.