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4 marksFood Chains, Food Webs, and Decomposers

CSEC Biology · May/June 2021 · Paper 2 · Question 3(d)(ii)

Discuss two possible consequences of the hawk becoming extinct in the ecosystem shown in Figure 3.

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Other parts of this question

  1. 3(a)(i)Identify a producer from the food web.[1 mark]
  2. 3(a)(ii)Identify a predator from the food web.[1 mark]
  3. 3(a)(iii)Identify a primary consumer from the food web.[1 mark]
  4. 3(b)State two roles of the producer in the food web.[2 marks]
  5. 3(c)(i)Identify one biotic factor that would affect the organisms shown in Figure 3.[1 mark]
  6. 3(c)(ii)Identify one abiotic factor that would affect the organisms shown in Figure 3.[1 mark]
  7. 3(d)(i)Explain why there are fewer organisms at the top than at the bottom of the food web.[2 marks]
  8. 3(e)Suggest two reasons why decomposers are important organisms in all food webs.[2 marks]

More practice: the rest of this paper · more Food Chains, Food Webs, and Decomposers questions · all CSEC Biology past papers