If a chemical with a toxicity level of 1 is mixed with a different chemical with a toxicity level of 1, the combined effect of exposure to the mixture is 2. This is an example of:
A) Chemical mixtures interacting by amplification.
B) Chemical mixtures interacting by antagonism.
C) Chemical mixtures interacting by squaring.
D) Chemical mixtures interacting by synergy.
E) Chemical mixtures interacting by additivity.

Question

Quizplus · Accepted Answer

The combined effect of the two chemicals equals the sum of their individual effects (1 + 1 = 2), which is an example of additivity. This means the effects of the chemicals when combined are exactly what one would expect based on their individual effects, without any amplification or reduction in effect.

If a Chemical with a Toxicity Level of 1 Is