Quelpr
12 marksNutrient Cycles and Energy Flow

CAPE Environmental Science Unit 1 · 2010 · Paper 2 · Question 1(c)

A teacher stated that all living organisms need phosphorous, but highlighted a major difference between the phosphorous cycle and the carbon cycle affecting available phosphorous and ecosystem productivity, noting human impacts on the cycle.

Suggest FOUR reasons to support the statement made by the teacher.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)Distinguish between 'primary ecological succession' and 'secondary ecological succession'.[3 marks]
  2. 1(b)(i)Describe the trend in variation of the alligator population shown in Figure 1. Use specific values in your answer.[3 marks]
  3. 1(b)(ii)Using the information presented in Figure 1, determine the carrying capacity of the Black River.[1 mark]
  4. 1(b)(iii)In which year was the carrying capacity of the Black River MOST likely achieved?[1 mark]

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