Pest treatment and eradication is a complex topic in urban ecosystem studies that draws on most (if not all!) of the topics students have covered in Living Environment: human body systems, pesticide resistance, ecosystem components and dynamics, and genetics. In this unit, students study an urban pest--lice, roaches, bed bugs, or mosquitoes, and develop a plan for getting rid of this pest. In the context of doing this work, students may revisit the Living Environment content that they most need to review in the weeks leading up to the exam. They will create an argument for a specific pest management strategy, taking into account science concepts from all of Living Environment that are relevant to their plan.