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Among mammals, the efficiency of ventilation of lungs as compared to reptiles and birds is better developed by the presence of

  • a)
    Ribs & costal muscles

  • b)
    Only ribs

  • c)
    Only costal muscles

  • d)
    Diaphragm

Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Among mammals, the efficiency of ventilation of lungs as compared to r...
In the reptiles and the birds, the respiration is less efficient than the mammals. It is because in mammals they have secondary structures that will help them to breathe and respire better. In addition to the lungs, the mammals have the ribs and internal and external intercostal muscles. They help in increasing the volume and the space in the lungs and thus the respiration is way more efficient.
So, the correct option is 'Ribs & coastal muscles'
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Most Upvoted Answer
Among mammals, the efficiency of ventilation of lungs as compared to r...
B)Diaphragm
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