Using the information from the lesson and the readings, respond to this question in one to two paragraphs:
What caused World War I to begin?

(SAMPLE ANSWER)

The four general causes leading to World War I were nationalism, imperialism, militarism, and alliances. Nationalism caused many small countries to rebel against imperialism and seek their independence. A focus on militarism meant that they had the means to cause great harm.

The final event that led to the beginning of the war was the assassination of Austria-Hungary's Archduke Ferdinand. Once Austria declared war on Serbia, the alliances that had been agreed to over the preceding years obligated several other countries to go to war.

Explanation:

the real answer is b

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.