<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:  What is the significance of pH levels in marine biology? Context: pH levels in marine biology are crucial as they impact the acidity or alkalinity of water, which directly influences the well-being of marine life. Answer: [/INST]pH levels dictate the acidity or alkalinity of the water, affecting the health of marine organisms.</s>