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2015-06-05T14:19:28+08:00

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The relation of grapes model to the breathing system;

The mainstem represents as the trachea.
The main branching stem represents as the bronchi.
The branches represents as the bronchioles; and
The circles (the grapes) represents as the airsacs of the lungs or alveoli.

Hope it Helps =)
-----Domini-----
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