deals with the design of effective, enforceable policies, methods for granting permissions totrusted users, and the componetns that can enforce those policies and permissions for protecting andmanaging the resources in the system.

Apopulation is a group of individuals of a single species existing together in an area. a population’s range, the area it occupies, changes over time. populations, in turn, may form a network, or metapopulation, connected by individuals that move from one group to another. within a population, the distribution of individuals can be random, uniform, or clumped, and the distribution is determined in part by the availability of resources. how might the geographic range of a species change if populations could not exchange individuals with each other? how would your answer depend on what type of metapopulation existed?

How long is a representative’s term of office

Why did the athenians choose officials by lottery? would there be drawbacks to this method? explain.