Why was it crucial to add the bill of rights to the us constitution?
a. the state and federal governments would not have been able to coexist.
b. people were concerned that the government would infringe on individual freedoms.
c. local governments were worried that they wouldn't have any power.
d. there was a need for each branch of government to "check" the others.

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.

dont kniw hope this hepl you