Answers

2016-06-15T19:31:02+08:00
The airtube (i don't know what specifically it is called), lungs, bronchi, bronchioles and alveoli. Search for more parts, that's what I can remember from last year.

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2016-06-15T19:45:23+08:00
Main stem- trachea
Two little branch stems- bronchi
Small stems- bronchioles
Grapes- alveoli

--Mizu
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