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4.1 Ecosystems

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Question 22
F

Here is a food chain.

grass → \rightarrow\,→ rabbit → \rightarrow\,→ fox

Which sequence shows how carbon in carbon dioxide in the air becomes part of the body of the fox?

[1]
A

respiration by the grass, then feeding by the rabbit, then feeding by the fox

B

photosynthesis by the grass, then egestion by the rabbit, then respiration by the fox

C

combustion of the grass, then feeding by the rabbit, then decomposition by the fox

D

photosynthesis by the grass, then feeding by the rabbit, then feeding by the fox

Markscheme

4.1 Ecosystems Questions

  1. GCSE
  2. /Biology
  3. /4.1 Ecosystems

111 exam-style questions on OCR GCSE Biology 4.1 Ecosystems, covering 4.1.1 Cycling of materials in ecosystems, 4.1.2 Microorganisms in cycling materials, 4.1.3 The carbon and water cycles, 4.1.4 Factors affecting decomposition, 4.1.5 Levels of organisation in an ecosystem, 4.1.6 Abiotic and biotic factors affecting communities, 4.1.7 Interdependence and competition, 4.1.8 Trophic levels, 4.1.9 Pyramids of biomass, and 4.1.10 Efficiency of biomass transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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