Final answer:
An individual's response to a toxin is influenced by factors such as age, gender, the amount of the toxin (dose), and how long the exposure lasts (duration). Older adults, children, and those with preexisting conditions are often more susceptible. Sensitization due to repeated exposures can also heighten an individual's response. The correct option is B) Age and gender
Step-by-step explanation:
The physiological principles that determine an individual's response to a toxin include age and gender, as well as the dose and duration of exposure to the toxin.
Age and preexisting medical conditions significantly influence the likelihood of immediate reactions to toxins, with certain groups such as older adults and children being at higher risk. The dose-response relationship is crucial in understanding how a specific amount of a toxin affects an individual, and this relationship is commonly depicted through a dose-response curve.
Finally, repeated exposures to a toxin can lead to sensitization, making an individual more sensitive to the effects of the toxin over time. The correct option is B) Age and gender