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GRE Exam
Colleges and universities should require their students to spend at least one semester studying in a foreign country.
Write a response in which you discuss the extent to which you agree or disagree with (lie claim. In developing and supporting your position- be sure to address the most compelling reasons and or examples that could be used to challenge your position.
A certain company made neither a profit nor a loss on the first 1.000 widgets it sold and made a profit of $0.50 on each widget it sold after the first 1.000. If the company's total profit from the sale of widgets was p dollars, what is the number of widgets it sold in terms of p ?
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As originally formulated, the selfish-herd theory of prey species aggregation assumed that predatory attacks were equally likely to be launched from any position within the environment. In some circumstances (e.g.. avian predators attacking prey from above), such an approach is appropriate. However, as James et at. argue, in many predator-prey associations, attacks are unlikely to occur from positions within the group. For example, it is likely that an ambushing predator waiting in the path of a group would be detected before the group moves over its position. Hence, in many ecological situations, predatory attacks on grouped prey will occur exclusively from outside the group. In such circumstances, there is a strong premium to a group member in being in the interior of the group.
The passage suggests that compared to members of the prey groups in "some circumstances." certain members of the prey groups in "many ecological situations" are likely to be less