ans.............

Asked by kirtichawla94 | 18th Oct, 2009, 06:16: PM

Expert Answer:

i) Double circulation is important to keep the oxygenated and deoxygenated blood separate from each other in the body and prevent their mixing.

ii) Such separation allows a highly efficient supply of oxygen to the body. 

iii) This circulation is important for animals like birds and mammals which have high energy needs. In other words, this circulation meets the high energy demands of the body.

iv) Double circulation ensures that only oxygenated blood gets pumped to the whole body from the heart.

 

(Another advantage of a double circulatory system is that blood can be pumped to the rest of the body at a higher pressure.)

Answered by  | 19th Oct, 2009, 07:44: AM

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