What does w. e. b. du bois say are the unique characteristics of american art (including music)?

a. vigor and ingenuity
b. beauty and peace
c. racism and oppression
d. educational and humor

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.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts

because it took place after the war of 1812 had come to an end.