The words сосны (pines), ели (firs), and берёзы (birches) all answer the question "Who/What grew?" and relate to the same verb ( росли ).
Since you requested a "piece" or example, here is a general breakdown of how to approach a typical 8th-grade task from this curriculum, such as analyzing or Sentences with Homogeneous Members : Example Analysis: Homogeneous Members of a Sentence russkii iazyk 8 klassa avtor e.a bystrova n v mangutova gdz
Русский язык 8 класс часть 2 Быстрова 2019-2022 г. Sentence: "В лесу росли сосны
(Answer)To provide a specific answer, please specify the exercise number (упражнение) or the topic you are currently studying from the Bystrova/Mangutova textbook. ели и берёзы." (Pines
Sentence: "В лесу росли сосны, ели и берёзы." (Pines, firs, and birches grew in the forest.)
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Sites like Gdz.ru or Reshak.ru sometimes host answers for specific authors, though you should verify the year of publication (e.g., 2019-2022 versions).