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4 marksEcology, Niches, and Interactions

CAPE Environmental Science Unit 1 · 2017 · Paper 2 · Question 1(c)(ii)

Define one of the types of interactions identified in (c)(i) and use an example to explain how it may influence the population numbers of an organism in an ecosystem.

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Other parts of this question

  1. 1(a)Define the term 'ecological niche'.[1 mark]
  2. 1(b)(i)State what the region 'X' represents in Figure 1.[1 mark]
  3. 1(b)(ii)Draw a diagram similar to Figure 1 showing how the niches of the two species will change over time.[4 marks]
  4. 1(c)(i)Identify two types of interactions, other than competition, between organisms in communities.[2 marks]
  5. 1(c)(iii)Outline the role of adaptation in addressing the interaction discussed in (c)(ii).[2 marks]
  6. 1(c)(iv)Discuss the relationship between species diversity and ecosystem stability.[6 marks]

More practice: the rest of this paper · more Ecology, Niches, and Interactions questions · all CAPE Environmental Science Unit 1 past papers