Answers

2015-06-06T12:39:51+08:00
INTERNAL RESPIRATION:
-Air from the bronchi travels to the bronchioles then to the tiny air sacs(alveoli) which connect to the lung capillaries.

THEREFORE: the bunch of grapes represents the alveoli.
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2015-06-06T17:37:59+08:00

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Stem= Trachea
2 large branching stems= Bronchi
Small stems= Bronchioles
Fruit= Alveoli

--Mizu
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