Why is double circulation of blood necessary in human beings?

Asked by  | 25th Apr, 2012, 02:26: PM

Expert Answer:

Double circulation helps to keep oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body. This is useful in animals that have high energy needs, such as humans (as well as birds and other mammals), which constantly use energy to maintain their body temperature.

Answered by  | 26th Apr, 2012, 07:40: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.