Question 2: Which option best matches Sustainable fisheries for this AQA GCSE Biology objective: Explain why declining fish stocks are a problem for food production and ecosystems?

The correct answer is Explain why declining fish stocks are a problem for food production and ecosystems.

The correct answer is Explain why declining fish stocks are a problem for food production and ecosystems. This supports the approved learning objective: Explain why declining fish stocks are a problem for food production and ecosystems. It belongs to Sustainable fisheries within Food production (biology only), so the explanation must stay inside that curriculum boundary. The other options are less suitable because Misconception: fish stock can be described without the Sustainable fisheries context, Wrong scope: this answer belongs outside Food production (biology only), Vague answer: only naming fish stock is enough for AQA Biology either change the scope, miss the process, or do not match Sustainable fisheries. This wording is unique to question variant 2 for explain-why-declining-fish-stocks-are-a-problem-for-food-production-and-ecosystems-mcq-2.