No joke. This was one of the questions. No minimum word count. No maximum word count. Just explain the tract in an essay that is graded on accuracy and thoroughness. All this while you have three hours to answer 280 questions, 30 of which are essays like this. It's wild. This is another case where I know a lot about physiology so I gave as thorough and succinct a summary as time allowed, but it made me wonder if there were specific grading points that they were interested in hearing. All told, it didn't feel like an honest assessment of skills.