Back to the full dot-point answer
EnglandBiologyQuick questions
3.5 Energy transfers in and between organisms
Quick questions on Energy and ecosystems: trophic levels and energy transfer efficiency - AQA A-Level Biology
4short 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 calculating efficiency?Show answer
The efficiency of energy transfer between two trophic levels is:
What is q1?Show answer
Define producer, primary consumer and decomposer. [3 marks]
What is q2?Show answer
A producer level contains 50 000 kJ per m squared per year; the primary consumers contain 4000 kJ. Calculate the percentage efficiency of energy transfer. [2 marks]
What is q3?Show answer
Explain why food chains rarely have more than five trophic levels. [3 marks]
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.