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Most insects have small holes in the exoskeleton called _____, which open and close to regulate air flow. bronchi alveoli spiracles trachea
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Asked 1/24/2013 8:07:23 AM
Updated 4/9/2015 9:36:35 PM
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User: Most insects have small holes in the exoskeleton called _____, which open and close to regulate air flow. bronchi alveoli spiracles trachea

Weegy: D. Trachea
vrtrooper89|Points 264|

Question
Asked 1/24/2013 8:07:23 AM
Updated 4/9/2015 9:36:35 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yumdrea [4/9/2015 9:36:35 PM]
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Most insects have small holes in the exoskeleton called SPIRACLES, which open and close to regulate air flow.

Added 4/9/2015 9:36:27 PM
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