"now the trumpet summons us again--not as a call to bear arms, though arms we need--not as a call to battle, though embattled we are-- but a call to bear the burden of a long twilight struggle, year in and year out, "rejoicing in hope, patient in tribulation"--a struggle against the common enemies of man: tyranny, poverty, disease and war itself."

what makes this part of the speech so effective in reinforcing kennedy's message?
a. the use of sarcasm
b. the use of repetition
c. the glittering generalities
d. the rhetorical question

they united the colonies in their fight against the british.

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.

europeans carried a hidden enemy to the indians: new diseases. native peoples of america had no immunity to the diseases that european explorers and colonists brought with them. diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to american indians

the ottoman empire

the christian crusades: conquered constantinople in 1453 ce

alexius sultan of the ottoman empire

fall of avars   by ottomans ended byzantine empire

the ottomans made islammic   the primary religion in the region, replacing orthodox christianity. they did allow the practice of christianity