How does freedom of the press guard liberty? A. By allowing the news media to report only on stories approved by the government
B. By allowing the government to take over the news media during a national emergency
C. By keeping the news media from reporting on the work of elected officials
D. By keeping the government from limiting or influencing sources of information

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?