Question

warm blooded animals required oxygenated blood for circulation ?give reason
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Answer 1

Answer:

It is so because the mixing of oxygenated and deoxygenated blood decreases the efficiency of heart in warm blooded animals.

Explanation:

Hope this helps :)

Answer 2

ANSWER:

The high energy is required by warm blooded animals. They maintain the constant body temperature. This allows more 'efficient supply of Oxygen' to human cells.

EXPLANATION:

These kinds of circulation make sure that 'oxygenated' and 'deoxygenated blood' is kept separate in our body.  

The oxygen from blood is absorbed by different parts of the body cells in order to initiate their biochemical pathway. This also maintains the body temperature of the warm blooded animals.