KiritoYuki KiritoYuki

04-12-2015
Biology

Answered

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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NathalyN NathalyN

04-12-2015

[] Question #7

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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Anonymous Anonymous

04-12-2015

the answer to your question is spiracles

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