which of these levels of biological organization contains the other three:
C) Body System
In the experiment, the independent variable is the drug amount. Experiment group is given certain amount of drug, control group is not given the drug. The dependent variable is the body fat. I think you means the control is the living environment including food and water.
P waves do not move through liquid material
Answer: I think
Dependent: The repellent
Independent: The Mosquitos