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4 marksNutrition in Living Organisms

CSEC Biology · January 2005 · Paper 2 · Question 3(c)(ii)

Explain how the factor you named at (c)(i) was responsible for the changes observed over the 24-hour period.

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Other parts of this question

  1. 3(a)Using ALL the available data, describe the changes in carbon dioxide concentration shown in Figure 3.[4 marks]
  2. 3(b)(i)Identify the TWO plant processes that affect the amount of carbon dioxide in the atmosphere.[2 marks]
  3. 3(b)(ii)Explain the changes taking place in the carbon dioxide concentration over the forest between 4.00 a.m. and 4.00 p.m.[2 marks]
  4. 3(c)(i)What environmental factor was MAINLY responsible for the changes which were seen in the graph in Figure 3?[1 mark]
  5. 3(d)Give THREE biological reasons why forests are important.[3 marks]

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