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  4. Which of the following features is common between birds and mammals?

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Q. Which of the following features is common between birds and mammals?

NTA AbhyasNTA Abhyas 2020Animal Kingdom

Solution:

Birds and mammals are homeotherms. Birds are warm-blooded, which means that they can maintain their own body temperature irrespective of the surrounding. This feature is evolved in them due to the development of a 4-chambered heart.