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Score: 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 10/3/2012 9:18:13 AM
Updated 7/22/2014 6:46:35 PM
1 Answer/Comment
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Flagged by debnjerry [7/22/2014 6:46:35 PM]
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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
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Questions asked by the same visitor
Score: The respiratory system of most insects and spiders is called the _____ system. spiracle tracheal airflow arthropod
Question
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]
Three types of _____ tissue are skeletal, smooth, and cardiac. connective epithelial nervous muscular
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Blood cells are compoundthread-likeconcave in shape because they lack a nucleus.
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Updated 4/25/2015 11:16:12 AM
1 Answer/Comment
Blood cells are concave in shape because they lack a nucleus.
Added 4/25/2015 11:16:12 AM
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Confirmed by jeifunk [4/25/2015 11:35:26 AM]
Flagella
Weegy: A flagella is a long slender structure that protrudes from the cell surface of a bacterium. (More)
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Updated 12/9/2014 12:30:51 PM
0 Answers/Comments
Most aquatic animals have _____ for breathing while most land-dwelling animals have _____. gills; lungs spiracles; lungs lungs; spiracles
Question
Updated 10/2/2012 10:13:16 AM
1 Answer/Comment
Most aquatic animals have GILLS for breathing while most land-dwelling animals have LUNGS.
Added 10/2/2012 10:13:24 AM
This answer has been confirmed as correct and helpful.
Confirmed by debnjerry [7/22/2014 6:46:45 PM]
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