Question

pearl divers in Japan can stay below water for several minutes at a time searching for oysters on the sea bed. they manage without air tanks. give a scientific explanation for this​

Answer 1

Explanation:

When they dive in cold water a series of automatic responses start which constrict blood vessels, increasing blood pressure, and causing heart rate to drop. While diving, pearl divers often see their heart rate drop to half its resting value ,even though they are swimming fast.