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Factor this expression completely, and, then, place the factors in the proper location on the grid. Place the binomial factor first. 81a^2 36a 4
Weegy: (9a + 2)^2 is the factor for the expression 81a2 + 36a + 4. (More)
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Asked 7/10/2012 6:47:28 AM
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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
Weegy: D. Trachea (More)
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Updated 1/18/2014 8:26:49 AM
1 Answer/Comment
Most insects have small holes in the exoskeleton called spiracles, which open and close to regulate air flow.
Added 1/18/2014 8:26:49 AM
This answer has been confirmed as correct, not copied, and helpful.
Match the receptor to the place it is most commonly found on an animal's body. 1. chemoreceptors skin 2. mechanoreceptors nose 3. olfactory receptors eyes 4. photoreceptors tongue
Weegy: I'm sorry but it's difficult to do the matching here in Weegy! (More)
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Asked 7/10/2012 9:27:08 AM
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Match the following types of nervous systems with their functions. 1. central controls automatic responses 2. peripheral sensory and motor nerves running to and from the CNS 3. somatic relaxing responses 4. autonomic main interpretation and processing center 5. sympathetic fight-or-flight responses 6. parasympathetic controls voluntary responses
Weegy: 3. somatic main interpretation and processing cente User: parasympathetic Weegy: Parasympathetic nervous system: The part of the involuntary nervous system that serves to slow the heart rate, increase intestinal and glandular activity, and relax the sphincter muscles. (More)
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Asked 7/11/2012 7:20:01 AM
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The main reason that a flock of geese might fly together in V formation in order to avoid capture. True False User: Why does a flock of geese fly in a 'V' formation?
Weegy: D. The goose at the front of the ?V,? leading the way for the other geese. (More)
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Asked 7/11/2012 7:50:10 AM
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