<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  Explain the importance of biodiversity in ecosystems. Context: Biodiversity plays a crucial role in maintaining ecological balance, offering ecosystem services, and enhancing resilience to environmental changes.

9. Answer: [/INST]It ensures ecological balance, provides ecosystem services, and promotes resilience to environmental changes.</s>