To analyze the effects of a new drug for anxiety developed by Solvit Wellness Inc., researchers conduct a study on two groups. Both the groups are informed about the usefulness of the drug in treating anxiety. However, only group A receives an injection of the actual drug, while group B receives an injection containing an inert substance. In this scenario, group B is known as a(n) .

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.