[Solved] Which of the following statements about studies on U.S. sexual behavior is true? A)Representative samples were not used. B)Pornography, pedophilia, and fetishism were specifically covered. C)People in the United States may be rather sexually conservative. D)Response rates were relatively low for this mail-in survey. Inversely Proportional: A relationship between two variables where as one variable increases, the other decreases at a consistent rate, and vice versa. Enzyme Concentration: The amount of enzyme present in a solution, which affects the rate of enzyme-catalyzed reactions. Energy Of Activation: The minimum amount of energy that reacting species must have in order to undergo a specified reaction. Enzyme: Biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.