1) voice box a) larynx b) trachea c) bronchi d) lungs 2) windpipe a) alveoli b) larynx c) lungs d) trachea 3) filters air a) lungs b) bronchi c) trachea d) larynx 4) functional units of the lungs a) larynx b) bronchi c) trachea d) alveoli 5) Cone-shaped at the apex, concave at the base a) bronchi b) larynx c) alveoli d) lungs

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