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WalesBiologyQuick questions

Unit 3: Energy, Homeostasis and the Environment

Quick questions on Population size and ecosystems - WJEC A-Level Biology

3short 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?
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Name the bacteria that convert ammonium ions to nitrate. [1 mark]
What is q2?
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Explain what is meant by the carrying capacity of a population. [2 marks]
What is q3?
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A trophic level holds 50 000 kJ m−250\,000 \text{ kJ m}^{-2} and the next holds 5 000 kJ m−25\,000 \text{ kJ m}^{-2}. Calculate the percentage energy transfer. [2 marks]

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