Pls help pls 15 points ill give brainliest

First shots fired on Mount Sumter - April 12, 1861

Battle of Gettysburg occurred - July 1, 1863

Lee and Grant meet at Appomattax -  April 9, 1865

President Lincoln assassinated - April 15, 1865

Congressional Reconstruction Act passed - March 2, 1867

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.