What term describes the combined effects of more than one chemical causing a greater effect on the body?

The term that describes the combined effects of more than one chemical causing a greater effect on the body is synergistic effects. This concept highlights that when two or more chemicals are present, their interaction can lead to an overall effect that is greater than the sum of their individual effects. This is critical in understanding the risks associated with exposure to multiple hazardous substances, as it emphasizes the potential for increased toxicity or harm that can arise when chemicals interact in the body.

In contrast, antagonistic effects refer to situations where the presence of one chemical reduces or negates the effects of another, which does not apply to the context of increased impact. Cumulative effects involve the additive impact of exposure to a single substance over time rather than the interaction of multiple substances. Immediate effects pertain to the rapid onset of symptoms or reactions following exposure, without considering the combined effects of multiple chemicals.