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9 marksDiseases

CSEC Biology · May/June 2010 · Paper 2 · Question 4(a)(ii)

Explain how EACH stage in the life history of the insect you identified at (a)(i) might be controlled to keep the vector population in check.

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Other parts of this question

  1. 4(a)(i)Identify, with the aid of diagrams, the main stages in the life history of a named insect vector of disease.[9 marks]
  2. 4(b)(i)Some sexually transmitted infections are caused by viruses and have been found to be without cure. Explain why viral infections are usually very difficult, if…[6 marks]
  3. 4(b)(ii)Apart from the nature of the AIDS virus, what OTHER factors make the control of this disease very difficult?[6 marks]

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