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. Â Increasing volume of inspired airÂ B. Keeping the lungs in proper shapeÂ C. Higher number of muscles to provide greater elasticityÂ D. Increasing surface area for gaseous diffusionÂ
Answer» Correct Answer - D Mammalian lungs have numerous alveoli for increasing surface area for gaseous diffusion.Â

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