Question

what is the advantage of valves in heart?​

Answer 1

Advantages of tissue valves compared to mechanical valves include the avoidance of lifelong warfarin therapy to prevent the development of blood clots. A disadvantage is their relatively poor durability compared to mechanical valves, with many requiring a re-operation in 10 to 20 years

Answer 2

The valves in the heart prevent the mixing of oxygenated and deoxygenated blood thus increasing the supply of oxygen to each cell of the body and providing higher level of energy; it is present mostly in terrestrial animals and their energy requirement is high as they are motile.