Angiotensin II is a potent vaso-active peptide that causes blood vessels to constrict, resulting in increased blood pressure. Angiotensin II also stimulates the secretion of the hormone aldosterone from the adrenal cortex. Aldosterone causes the tubules of the kidneys to increase the reabsorption of sodium and water into the blood.
<br /> It's alot faster than 1 mph, a human swims 2-5 mph average. <br /> It depends on what kind of shark, but the mako can get up to 45-50 mph in short bursts. When a shark is hitting prey from underneath they can reach up to 30mph. The type of shark they are asking for is clearly a Great White Shark. <br /> It's alot faster than 1 mph, a human swims 2-5 mph average. <br /> It depends on what kind of shark, but the mako can get up to 45-50 mph in short bursts.
Based on the video, the great white shark that struck the cage didnât appear to be fully grown, as Boston.com points out. Nevertheless, white sharks can swim as fast as 35 mph underwater and have been known to attack with such momentum that they are often carried fully out of the waves. These breach attacks, which are common off the coast of South Africa, routinely yield stunning footage, as the Huffington Post points out.