Why might a country choose to empower subnational governments at the expense of the national government?

Why do boys think i'm so pretty when i'm the ugliest thing that's walked this planet

Did the writers of the declaration of independence accomplish their goals (did we get our independence and the new government we wrote about)?

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?