The "voprosy" (questions) found in these study aids typically cover the following core areas:
In 9th grade, the biology curriculum shifts from descriptive natural history to "Introduction to General Biology". This transition introduces students to sophisticated topics like cytology, genetics, and evolution. GDZ for this year is not merely a tool for copying answers but serves several educational functions:
ОГЭ−2026, Биология: задания, ответы, решения