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1. (A) shanty towns made by homeless. Explenation A "Hooverville" was a shanty town built during the Great Depression by the homeless in the United States. They were named after Herbert Hoover, who was President of the United States during the onset of the Depression and was widely blamed for it.

2. (A) Jazz.  explenation Jazz has evolved into many sometimes contrasting subgenres including smooth jazz, Bebop, Swing, Fusion, Dixieland and free jazz. Jazz originated in the early 20th century out of a combination of the Blues, Ragtime, Brass Band Music, Hymns and Spirituals, Minstrel music and work songs.

answer 2

Explanation:

I did that answer before

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.

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