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7.4 Trophic levels in an ecosystem

7.4 Trophic levels in an ecosystem

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Question 26
F

Food chains rarely have more than five trophic levels.

Which statement explains why?

[1]
A

Too little biomass is left to support another trophic level

B

Apex predators eat all of the organisms in the level below

C

Decomposers remove most biomass before it reaches the top

D

Animals at the top level are too large to be eaten by others

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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