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Q: Score: Most insects have small holes in the exoskeleton called _____, which open and close to regulate air flow. bronchi alveoli spiracles trachea
A: Most insects have small holes in the exoskeleton called SPIRACLES, which open and close to regulate air flow.
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User: Score: 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 10/3/2012 9:18:13 AM
Updated 7/22/2014 6:46:35 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by debnjerry [7/22/2014 6:46:35 PM]
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Most insects have small holes in the exoskeleton called SPIRACLES, which open and close to regulate air flow.
Added 7/22/2014 6:46:32 PM
This answer has been confirmed as correct and helpful.
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Score: The respiratory system of most insects and spiders is called the _____ system. spiracle tracheal airflow arthropod
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Not Answered
Updated 5/6/2014 6:25:18 PM
1 Answer/Comment
The respiratory system of most insects and spiders is called the tracheal system.
Added 5/6/2014 6:25:18 PM
This answer has been confirmed as correct and helpful.
Confirmed by debnjerry [7/22/2014 6:47:18 PM]
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