HELP PLS ASAP! How did the governor of Arkansas respond when nine African American students tried to attend the previously all-white high school in Little Rock?

He ordered state troops to stop them from attending.
He had the National Guard escort them safely into the school.
He shut down the school amid boycotts and protests.
He filed an appeal with the Supreme Court.

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?