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.
How fast can fish swim? I seriously question the speeds often given for any fish, especially when Wikipedia and some reputable some encyclopedias claim that sailfish are supposed to be the fastest fish and can hit 60 miles per hour. I once went to several references and online sites looking for Orca speeds. I found a range of speeds from 25 to 35 miles per hour (from here on shortened to mph) on the publications and web sites. None were anywhere near as fast as some the speeds some fish can supposedly attain. Since Orcas can run down, catch, and eat, blue fin tuna, I question all the old, unsubstantiated fish speeds.