Quelpr
3 marksFood Chains, Food Webs, and Decomposers

CSEC Biology · May/June 2006 · Paper 2 · Question 1(g)(ii)

Decomposers are important to food webs because they recycle nutrients.

Describe the role decomposers play in the recycling process.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)Complete Table 1 using ONLY the organisms shown in the food webs in Figure 1.[6 marks]
  2. 1(b)Identify TWO similarities between the aquatic and terrestrial food webs.[2 marks]
  3. 1(c)Describe how data may be collected to construct the terrestrial food web in Figure 1. Make a list of the materials and apparatus required and state ONE…[7 marks]
  4. 1(d)In the space provided below, construct a table to present the data to be collected for constructing the terrestrial food web.[4 marks]
  5. 1(e)Suggest TWO ways in which the data to be collected may be summarized or represented, apart from food webs.[2 marks]
  6. 1(f)(i)How would the method differ from that described in (c), if you wished to gather data to construct the aquatic food web?[2 marks]
  7. 1(f)(ii)Explain why the method would be different for collecting data for the aquatic food web.[2 marks]
  8. 1(g)(i)Name TWO types of decomposers that are usually found in food webs.[2 marks]

More practice: the rest of this paper · more Food Chains, Food Webs, and Decomposers questions · all CSEC Biology past papers