In order to achieve foreign policy goals, the United States often: A. lets international organizations command its military.
B. forms alliances with friendly countries.
C. demands that other countries adopt isolationism.
D. invades countries that promote democracy. ​

forms alliance with friendly countries

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.

a woodchuck would chuck 12.5 wood : 3