8 of Which toxicological effect involves one substance increasing the toxicity of another? a. Additive effect b. Synergistic effect c. Potentiation d. Antagonistic effect

The correct answer is **c. Potentiation**.<br /><br />Here's why:<br /><br />* **Potentiation** occurs when a non-toxic substance increases the toxicity of another substance. The non-toxic substance itself doesn't cause a toxic effect, but it enhances the toxicity of the other substance.<br /><br />Let's look at the other options:<br /><br />* **Additive effect:** The combined effect of two substances is equal to the sum of their individual effects. (1 + 1 = 2)<br />* **Synergistic effect:** The combined effect of two substances is greater than the sum of their individual effects. (1 + 1 = 3)<br />* **Antagonistic effect:** One substance reduces or blocks the effect of another substance.<br /><br /><br />Therefore, potentiation is the specific term for one substance increasing the toxicity of another.<br />