Mammalian lungs have an enormous number of minute alveoli (air sacs). – InterviewSolution

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1.	Mammalian lungs have an enormous number of minute alveoli (air sacs). This is to allowA. more space for incrasing the volume of inspired airB. more surface area for diffusion of gasesC. more spongy texture for keeping lungs in proper shapeD. more nerve supply to keep the lungs working
Answer» Correct Answer - B

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