The option of a state's seceding from the union was closed by the: apostolic succession, civil war, emancipation proclamation, revolutionary war.

The question of secession from the union was settled by the devastation of the Confederacy by Union forces in US Civil War, and subsequent military rule of the southern states during the post war period of reconstruction which ended with the election of Rutherford Hayes in 1876.

this defines the ability for a flex item to grow if necessary. it accepts a unitless value that serves as a proportion. it dictates what amount of the available space inside the flex container the item should take up.

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genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.