Question 30 (3.33 points)
many people living in rural america began to move into the cities because land was
cheaper for them to buy.
12
18
true
false

False.

Explanation:

Between 1870 and 1910, the number of Americans employed in agriculture fell by a third. This was due to the spread of new agricultural equipment. The main source of replenishment of the army of wage workers in the cities was the impoverished peasants who moved to the cities. The population moved from rural areas to cities in order to find work in large factories and manufactories.

u

explanation:

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.