It sounds like you're looking for help with a based on the Andreeva textbook for grades 10-11, perhaps using a reshebnik (answer key) for guidance.
(e.g., Mendel's laws or biotechnologies)
Once you pick a topic, I can draft a high-quality essay that matches the level of the Andreeva textbook.
Because "Biology 10-11" covers a vast range of topics, I need a little more detail to write something truly useful for you. Could you clarify if you need an essay on a from that curriculum, such as:
(e.g., ecosystem stability or human impact on the biosphere) Cell Biology (e.g., metabolism or protein synthesis)
(e.g., Charles Darwin or evidence of evolution)
