Multiple Select QuestionSelect all that applyWhich of the following statements are reasonable conclusions that can be drawn from a recent headline that announced the discovery of 23 pesticides in 16 food samples?Multiple select question.Pesticide residues are not necessarily harmful, for a substance produces a harmful effect only if it reaches within the body in a high enough dose.Not only are there more toxins in the environment today, they are more widespread and more highly concentrated now than in the past.Any amount of a toxic substance is unacceptable so a reliable way to establish danger is to count the number of compounds detected.The mere presence of a toxin is insignificant without considering how much is there, where it is located, how accessible it is, and who is exposed.The headline is evidence that our current level of exposure to toxic substances is unjustifiable.Need help? Review these concept resources.

Select all that applyIn assessing the danger of toxic substances, which of these statements are true?Multiple select question.Any exposure to toxic substances is unjustifiable.The dose makes the poison.Our increasing ability to detect traces of a substance sometimes means that though we can detect it, the level may be too low to cause harm.If a toxin can be detected, it is dangerous, no matter how low the level.Need help? Review these concept resources.

Which of the following statements are undesired effects of widespread pesticide use?Multiple select question.Creation of pesticide-resistant populationsDestruction of nontargeted organismsNeed for stronger and greater amounts of pesticidesCreation of new species from overuse of pesticides

Multiple Select QuestionSelect all that applyOf the many factors that determine whether a particular chemical will prove to be dangerous, which of the following are based on the nature of the chemical agent itself?Multiple select question.The individual exposed is particularly sensitive to the chemical agent.The chemical agent is water-soluble.The chemical agent is not biodegradable and thus is persistent in the environment.The chemical agent was ingested only if one ate the skin of the apple.

Multiple Select QuestionSelect all that applyThe 500 million family farms that existed in 2015 Blank______.Multiple select question.were largely organicused a relatively high amount of pesticidesproduced about 80 percent of the world's foodgrew very little food compared to industrial-scale farms

Select all that applyOrganic pollutants include Blank______.Multiple select question.some chemicals used to make drugs or pharmaceuticalssaltsmercurysome chemicals used to make pesticidesNeed help? Review these concept resources.