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Home Q & A Board Biology-Related Homework Help Cell Biology
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colleen colleen
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9 years ago
The excitatory effects of caffeine result from
a. the release of serotonin.
b. alteration of the flow of blood to the brain. 
c. stimulation of GABA receptors.
d. activation of adenosine receptors.
e. blockade of adenosine receptors.
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ThePsychicThePsychic
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9 years ago
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