To most, it was just a Tuesday night chore. But to Nikita, it felt like a code. He reached for his guide, expecting a quick copy-paste job. Instead of the usual diagram, the GDZ page for this section was blank, except for one handwritten note in the margin: “Look closer at the specimen in Lab Room 304.”
In the Russian educational system, 7th-grade biology typically focuses on —the study of the structure, life processes, and diversity of animals. While the query mentions "EGE," it's worth noting that the EGE is the final state exam taken in 11th grade; however, workbooks for 7th grade often include "EGE-style" questions to begin early preparation for the format and rigor of these national exams. The Mystery of the Missing Mandible A Biology Story
The next morning, Nikita slipped into the lab. The room smelled of formaldehyde and old wood. He found the crawfish specimen, but something was wrong—the mandibles were gone. In their place was a small, rolled-up piece of paper tucked into the chitinous shell.
He scribbled his answer in his workbook: "The population faces extinction unless a mutation allows for a new food source."