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1 markNutrient Cycles and Energy Flow

CAPE Environmental Science Unit 1 · 2004 · Paper 1 · Question 1(a)

Figure 1 shows a food web from a mangrove ecosystem.

Identify a secondary consumer from Figure 1.

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Other parts of this question

  1. 1(b)State three possible impacts on the ecosystem if the population of water beetles died out.[3 marks]
  2. 1(c)State the importance of green algae in the mangrove ecosystem.[2 marks]
  3. 1(d)(i)Identify which organism(s) has the least biomass.[1 mark]
  4. 1(d)(ii)Explain why the organism(s) identified in (d)(i) have the least biomass.[2 marks]

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