Respiratory illnesses account for 20 percent of all acute illness.
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Q11: Overinflation of the lungs during inhalation is
Q12: The larynx gives resonance to the voice.
Q13: External respiration involves the use of oxygen
Q14: The exchange of oxygen and carbon dioxide
Q15: If the level of carbon dioxide in
Q17: Which of the following is an example
Q18: Most respiratory infections are caused by bacteria.
Q19: A deep,prolonged breath that fills the lungs,believed
Q20: Inflammation of the throat caused by bacteria
Q21: _ is the physical and chemical process
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