In the 1800s, many people faced nativism, which was a distrust of native american populations. an acceptance of people not born in the us. a resentment of people not born in the us. a distrust of people who lived in rural areas.

A distrust of Native American populations

Explanation:

Nativism is a reaction against immigrants. Earlier inhabitants of an area or a country sometimes develop a dislike or fear of immigrants With nativism, people of the same race may dislike each other

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.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse