Although handedness is a matter of degree, what percent of humans are right-handed?
a. about 70 percent
b. about 80 percent
c. about 90 percent
d. about 98 percent
C
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You know your friend Ramon has just had a split-brain surgery to treat his uncontrollable epileptic seizures. When Ramon returns to school, it is likely that he will
A. have trouble verbalizing his feelings. B. no longer be a star athlete as his coordination will have been affected. C. almost be the same, but his grades will probably drop a bit. D. have only very subtle changes that show up in follow-up tests of cognitive functioning.
Most older Americans prefer to live in
a. assisted living units b. nursing homes c. continuing care facilities d. their own homes
One of the reasons cited in the text for joining groups is that groups provide
a. individual power and aptitude b. opportunity to pursue individual interests c. social comparison with others d. all of the above
Animation 2.13: Loewi's Experiment Demonstrating Chemical TransmissionClick on the above link to access the Interactive eBook. Once you've signed in, scroll to page 34 and watch the video. When you've finished watching the video, come back to the test and answer the following questions:Explain at the level of the neuron how chemicals transferred to the second heart would have caused its neurons to slow down the heart rate.
What will be an ideal response?