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5 marksSocial and Preventative Medicine

CAPE Biology Unit 2 · January 2023 · Paper 2 · Question 6(d)

DDT, an insecticide, was used to kill the local mosquito population. Over time, with the continued use of DDT, the mosquito population continued to increase.

State the name of a process, other than reproduction, which may have led to the increase in the mosquito population and explain how this increase occurred despite the use of DDT.

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Other parts of this question

  1. 6(a)Suggest TWO methods other than the use of insecticides that a country could utilize to eradicate mosquitoes. For EACH method suggested, name the stage of the…[4 marks]
  2. 6(b)List TWO diseases which would become prominent in a country which has a large mosquito population.[2 marks]
  3. 6(c)State the trend in the number of mosquito-related disease cases between 2017 and 2019 and suggest THREE reasons for this trend.[4 marks]

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