- (Topic 3)
Ultimately the ethical implications of neuroscieuce may be (i) _____ than those of genetics. The transformations of behavior possible by manipulating neurons are both more predictable and more thorough than what can be achieved by altering genes. Even if the ethical and practical constraints on genetic experimentation suddenly (ii) _____ - we'd have to wait decades to see the outcome of such experiments. Altering the brain's functioning, by contrast, can produce startlingly (iii) _____ results.
Correct Answer:
CFH
- (Topic 2)
Chloe spent a total of x dollars last August on clothes, transportation, and college textbooks. She spent 23 percent of the total on college textbooks, of which 13 percent was spent on her college mathematics textbook. Chloe spent a total of $450 on the college textbooks that were not her college mathematics textbook. Which of the following is closest to the value of x ?
Correct Answer:
D
- (Topic 2)
Exhibit.
The variance of n numerical data x1, x2, x3, , , , , xn with the mean x is equal to 
For the shares of stock purchased and then sold by the investors shown, the mean of the 5 numbers for Stock Y is 50 and the corresponding mean for Stock X is 70. The variance of the 5 numbers for Stock }' is what fraction of the corresponding variance for Stock X ?
A)
B)
C)
D)
E)
Correct Answer:
E
- (Topic 3)
Laws protecting intellectual properly are intended to stimulate creativity, yet some tonus of creative work have never enjoyed legal protection—a situation that ought to be of great interest. If we see certain forms of creative endeavor (1) _____ as a result of uncontrolled copying, we might decide tot (ii ) _____ intellectual property law. Conversely, if unprotected creative work (iii) _____ in the absence of legal rules against copying, we would do well to know how such flourishing is sustained.
Correct Answer:
AEH
- (Topic 3)
Even the most complex models used in fishery management are cartoons of reality. They reduce hundreds of links in food webs to a handful and inadequately represent processes operating over space. Many of their assumptions are as flawed today as those of the simplest models of the past. Fish stocks, for one. are still assumed to be populations of a species that are isolated from one another. Yet many populations mix at their edges and some even migrate through areas occupied by other populations. Furthermore, the more complex models suffer from a "crisis of complexity"—more is really less. Adding layers of detail, each carrying its own set of assumptions, produces instability. The model's behavior becomes erratic, and conclusions drawn from it can be downright misleading.
In the context of the passage, the highlighted portion serves to
Correct Answer:
B
