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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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barry barry
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12 years ago
John, a 72-year-old grandfather, had been smoking heavily for 24 years and had a persistent cough. A biopsy of his lung tissue revealed considerable amounts of carbon particles. How could this happen considering the natural cleaning mechanism of the respiratory system?
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biology101biology101
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12 years ago
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barry Author
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12 years ago
This calls for a celebration Person Raising Both Hands in Celebration
jamiebonf99
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
smdavis
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2 hours ago
Correct Slight Smile TY
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