Approximately 25 percent of North American Indian tribes were , which means that children traced their family descent through their mother's line rather than through that of the father.

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?

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

Where do the majority of cases heard by the supreme court originate?