1. What does Bill Clinton call "the urgent question of our time"?
A. how to enrich the lives of millions of Americans
B. whether we can make change our friend and not our enemy
C. how to minimize crime and poverty in American cities
D. whether the world can rise to the challenge of new changes

B. Whether we can make change our friend and not our enemy

Explanation:

it's no easy i swear it's hard

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.