What happens to acetylcholine after it attaches to a receptor on the postsynaptic cell?
a. It is broken down into two components
b. It is reabsorbed intact by the presynaptic cell.
c. It is metabolized by the postsynaptic cell as a source of energy.
d. It continues to stimulate the postsynaptic neuron until replaced by another neurotransmitter.
a
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Briefly explain the confounds of testing and regression to the mean
What will be an ideal response?
According to frequency theory, pitch perception is partially determined by:
a. the frequency of neural impulses traveling along the auditory pathways b. the location in the cerebral cortex where the sound is decoded c. how often the same sound has been encountered in the past d. the location of the activated hair cells on the basilar membrane
Martin is a dairy farmer who makes more profit when his cows produce more milk. He has recently taken to selectively breeding cows that produce more milk ahead of cows that produce less milk so that he will be able to maximize his product output
Additionally, he tries to push breeding of chickens that produce more eggs so that he has more eggs to sell. According to Charles Darwin, Martin is engaging in __________ selection. a. restrictive b. forced c. natural d. artificial
Roughly _____ American children under 18 live in poverty
A) one in twenty B) one in ten C) one in five D) one in three