(a) What is the significance of the presence of mucus and hair in nasa – InterviewSolution

1.	(a) What is the significance of the presence of mucus and hair in nasal cavity?(b) Why don't trachea or windpipe doesn't collapse when there is no air inside?(c) Define aerobic and anaerobic respiration?
Answer» (a) What is the significance of the presence of mucus and hair in nasal cavity? (b) Why don't trachea or windpipe doesn't collapse when there is no air inside? (c) Define aerobic and anaerobic respiration?

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