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7.4 Trophic levels in an ecosystem

7.4 Trophic levels in an ecosystem

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Question 8
F

A sheep eats grass. Not all of the biomass in the grass becomes sheep biomass.

Which statement about the biomass lost by the sheep is correct?

[1]
A

Faeces is egested and urea is excreted in urine

B

Faeces is excreted and urea is egested in urine

C

Urea is egested in faeces and water is excreted

D

Faeces and urea are both waste products of respiration

Markscheme

7.4 Trophic levels in an ecosystem Questions

  1. GCSE
  2. /Biology
  3. /7.4 Trophic levels in an ecosystem

61 exam-style questions on AQA GCSE Biology 7.4 Trophic levels in an ecosystem, covering 7.4.1 Trophic levels, 7.4.2 Pyramids of biomass, and 7.4.3 Transfer of biomass. Each one has a worked solution and a mark scheme showing where the marks go.

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