Review questions 1. what is toxicology? 2. who was mathieu orfila? 3. what is strychnine? what symptoms does it cause? 4. what is percent saturation? 5. what is aconite? what symptoms does it produce? critical thinking questions 1. what characteristics do substances often have that make them attractive as a poison when someone wants to intentionally harm another person? 2. describe three different samples that can be used to test for poisons. what are the advantages and disadvantages of these samples? 3. why are poisons used less today than they were in the past? what factors influenced this change? 4. in addition to samples taken from a body, what other information or evidence could point to poisoning as the cause of death? 5. what are the challenges for forensic scientists in identifying poisons?