The document contains a series of questions and prompts related to researching and writing a paper on endangered species. The best organization would be to first answer the question "What is causing the problem?", then "Which species are endangered?", followed by "What will happen if these animals disappear from the earth?" and concluding with "What are the solutions to the problem?". This structure introduces the issue, provides relevant details, discusses the consequences, and concludes by discussing potential solutions.