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4 marksNutrient Cycles and Energy Flow

CAPE Environmental Science Unit 1 · 2005 · Paper 2 · Question 2(c)

Only a small percentage of energy incorporated into the ecosystem is available to the barracuda. Suggest TWO reasons for this.

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Other parts of this question

  1. 2(a)Group the organisms shown in the food web in their respective trophic levels.[5 marks]
  2. 2(b)Explain how energy becomes incorporated in this ecosystem.[5 marks]
  3. 2(d)Explain how this community might be altered if the population of sea urchins died out.[6 marks]

More practice: the rest of this paper · more Nutrient Cycles and Energy Flow questions · all CAPE Environmental Science Unit 1 past papers