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Question

Why it is necessary to separate oxygenated and deoxygenated blood in mammals and birds?


A
To stop mixing of oxygenated and deoxygenated blood
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B
To maintain body temperature
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C
To suffice higher energy need
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D
All of the above
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Solution

The correct option is D All of the above
The heart of the higher organism is well equipped with the vascular system. the arteries carry the oxygenated blood while the veins carry the deoxygenated blood. This prevents the mixing of oxygenated and deoxygenated blood.
So, the correct answer is option A.

Biology

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