Which term describes a way to organize chemical agents that manifest symptoms within seconds or minutes?

The term that describes a way to organize chemical agents that manifest symptoms within seconds or minutes is indeed best represented by "fast effect." This terminology indicates that the impact of the chemical agent is rapid, leading to immediate physiological changes in the organism affected. Fast effects are critical to understand in the context of response protocols, as they require prompt action to mitigate harm and ensure safety.

In contrast, other terms such as "slow effect," "immediate effect," and "delayed effect" refer to different timings of symptom onset. "Immediate effect" may overlap with "fast effect," but the focus on a timeframe of seconds to minutes specifically aligns with the description of fast effects. Understanding these distinctions helps operators quickly identify the level of urgency and response needed when dealing with various chemical agents.