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Topic 6: Microbiology, immunity and ecosystems
Quick questions on Ecosystems and succession: energy flow, nutrient cycles and succession - Edexcel A-Level Biology B
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Explain why only about 10 per cent of energy is passed between trophic levels. [3 marks]
What is q2?Show answer
Describe the role of pioneer species in succession. [2 marks]
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