:if ghosts are real, how do they move?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Which blood cell spend most of their time in the lymphatic system?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.