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2 marksExcretion and Homeostasis

CSEC Integrated Science · May/June 2015 · Paper 2 · Question 2(c)(iii)

Mr Boodoo's backyard with vegetable plot, shed, feeding animals and a stream.

State ONE disadvantage and ONE advantage of the excretory product named in (ii) above.

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Other parts of this question

  1. 2(a)Distinguish between 'excretion' and 'egestion'.[2 marks]
  2. 2(b)(i)Identify the structures labelled A, B, C and D in Figure 3.[4 marks]
  3. 2(b)(ii)State the function of the part labelled D in Figure 3.[1 mark]
  4. 2(c)(i)Identify ONE excretory product that is likely to be present in the atmosphere of Mr Boodoo's backyard.[1 mark]
  5. 2(c)(ii)Identify ONE excretory product that is likely to be present in the soil of Mr Boodoo's backyard.[1 mark]
  6. 2(c)(iv)Explain how the water from the stream may be made safe for drinking.[4 marks]

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