If a frankish christian merchant traveled to the spanish city of córdoba in the 10th century, which would he or she not fin

Why was the battle of stalingrad a turning point in the european war

All of the following cities are located in china except

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?