Answers

2016-06-16T22:41:02+08:00
Stem - trachea
2 branches - bronchi
smaller branches - bronchioles
grape fruit - alveoli
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2016-06-16T22:46:45+08:00
The main stem of the grapes represents the trachea ,the smaller stem/branches represent, the bronchi ,the smallest stem/branches represent the bronchioles and the grapes represents the alveoli ..
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