Contrast the symptoms and the cause of Huntington's disease with those of Parkinson's disease.
What will be an ideal response?
Huntington's disease (HD) is caused by degeneration of the caudate nucleus and the putamen (and loss of GABA function). The disease is marked by uncontrollable jerky movements of the arms and legs. Parkinson's disease is associated with neurodegeneration of the dopamine system and involves difficulty initiating movements.
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Humans share what percent of their genes with fruit flies?
a. 18% b. 26% c. 44% d. 92%
Where there is a restricted range of values for one of two variables being measured
a. the correlation coefficient will be close to +/- 1.0. b. the correlation coefficient may be close to zero even if the two variables are related. c. the correlation coefficient will be negative. d. the correlation coefficient will be positive.
Concerning the rate of nerve conduction, Helmholtz found that:?
a. ?it is measurable in frogs but not in humans b. ?it is almost instantaneous and therefore not measurable c. ?it is measurable, and that it is fairly slow d. ?it is essentially what Müller thought it to be
Cross-cultural research on effective early childhood education indicates that in ______, a child-centered approach works especially well.
A. Japan B. Egypt C. the United States D. China