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OpenStudy (anonymous):
Humans breathe through bronchi. What structure do insects have for breathing? A.gills B.tracheae C.skin D.lungs will fan and medal
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OpenStudy (dr0zier99):
tracheae
OpenStudy (anonymous):
thanks i would fan but i am already a fan
OpenStudy (dr0zier99):
XD
OpenStudy (anonymous):
>.<
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