2) DECLINE AND FALL OF THE BYZANTINE EMPIRE: In the centuries after Justinian's
reign, the empire lost much land to invading armies. It was also weakened by internal court
and constant warfare. During the Fourth Crusade in the early 1200s, western Christians took
Constantinople and ruled it for 50 years. The final blow to the empire was the taking of
Constantinople by the Ottoman Empire in 1453.
(5) The Byzantine Empire fell for many reasons. Specifically,

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.

b. florence

d. milan

may i have the answer choices ?