Question

why is it necessary to separate oxygenated and deoxygenated and deoxygenated blood in mammals and birds​

Answer 1

Answer:

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$\red {QUESTION}$

Q:- why is it necessary to separate oxygenated and deoxygenated and deoxygenated blood in mammals and birds?

$\green {ANSWER}$

Warm-blooded animals such as birds and mammals maintain a constant body temperature by cooling themselves when they are in a hotter environment and by warming their bodies when they are in a cooler environment. Hence, these animals require more oxygen (O2) for more cellular respiration so that they can produce more energy to maintain their body temperature.

Thus, it is necessary for them to separate oxygenated and de-oxygenated blood, so that their circulatory system is more efficient and can maintain their constant body temperature.

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Answer 2

The separation of the right side and the left side of the heart is useful to keep oxygenated and deoxygenated blood from mixing. It allows a highly efficient supply of oxygen to the body. This is very useful in animals that have high energy needs such as bird and mammals which constantly use energy to maintain their body temperature . In animals that do not use energy fort this purpose , the body temperature depends on the temperature in the environment. Such animals like amphibians or many reptiles have three chambered heart and tolerate some mixing of the oxygenated and deoxygenated blood streams.