Can you answer both questions please ASAP

How did southern slaveholders attempt to convince people in the north to support slavery?

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?

What was the purpose of this act? to discontinue the trade of merchandise within the city of boston to close boston harbor to close ports throughout massachusetts bay to decrease trade with the north american colonies