Why was area 51 originally created, and how did that lead to its reputation as a site for studying ufos?

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?

Why do drivers have difficulty seeing side traffic at t-intersections in rural areas?

Which conflict is often referred to as the first "televised war"? a) gulf war b) korean war c) vietnam war d) world war ii