59.The explanatory variable(s) is (are) A.body weight in kilograms. B.dosage in milligrams of ephedrine. C.number of revolutions of the exercise wheel. D.effect of ephedrine on the rat. E.species of rat. F.no ephedrine versus treatment of ephedrine.
60.The individual in this study is
61.This study is an example of
62.Does this study incorporate randomization?
63.Does this study incorporate replication? A.Yes B.No