The variety of responses among organisms that get the same dose of chemical is due to----Question 25Answera.A+Cb.Extent of exposurec.Dosed.individual susceptibility

Acute toxicity occurs after: Repeated and/or prolonged exposures Single or short exposures Following exposure to a hazardous chemical Exactly 3 exposures

Most exposure of humans to chemicals is via naturally occurring compounds consumed from-----Question 14Answera.None of the aboveb.Synthetic compoundsc.Phytochemicalsd.Food plants

Routes of exposure to chemicals are breathing, skin/eye contact, and swallowing.Question 1Select one:TrueFalse

Multiple Select QuestionSelect all that applyWhich of the following statements correctly describes how factors related to the individual influence how they respond to toxins in the environment?Multiple select question.Age affects susceptibility to toxins, as chemicals that might be relatively harmless to adults may be dangerous to young children.Environmental regulations may affect susceptibility to toxins. Lack of protective laws may increase an individual's sensitivity to toxins.Where an individual lives determines his/her susceptibility to the chemical.Immunological status affects susceptibility to toxins. A healthy individual may be insensitive to doses of toxins dangerous to someone who is ill.Need help? Review these concept resources.

What does the saying "the dose makes the poison" mean?Multiple choice question.All substances have equivalent potential for harm, so exposure to any of them is risky.Any amount of a dangerous substance is unacceptable and counting the numbers of compounds detected is a reliable way to establish danger.Most substances are toxic at some level of exposure depending on the substance and the nature of the exposure.What matters is the amount of a toxic substance present; whether or not we are exposed to the toxin is not relevant.Need help? Review these concept resources.