Answer quickly and correctly. Which of the following BEST describes the pre-civil war South?

a. Factory system, supported tariffs, growing abolition movement
b. Open to settlement, featured the Buffalo Soldiers, large numbers of immigrants
c. Supported the expansion of slavery, plantation system, supported states’ rights
d. Had some slave states, home to a large immigrant population, relied on manufacturing

Some organisms have a large geographic range. for example, the norway rat lives on every continent except antarctica. a population of norway rats is the number of rats in one particular area. do you think it’s scientifically possible for a population of norway rats in north america to carry different genetic mutations than a population of norway rats in africa? do you think it’s possible that they carry some of the same mutations? what types of information can scientists learn by studying the genomes of these two populations of rats?