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3 marksVectors, Microorganism Control and Immunity

CSEC Human and Social Biology · 2021 · Paper 2 · Question 6(b)(ii)

Aedes aegypti mosquitoes breed in stagnant water. Extended dry seasons followed by flooding can alter disease patterns.

Explain why scientists predict that long dry seasons could increase levels of mosquito-borne diseases.

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Other parts of this question

  1. 6(a)(i)State ONE example of continuous variation and ONE example of discontinuous variation.[2 marks]
  2. 6(a)(ii)State TWO reasons why genetic variation is important to organisms.[2 marks]
  3. 6(b)(i)Name the disease that the Aedes aegypti mosquito carries and identify ONE other mosquito-borne disease.[2 marks]
  4. 6(c)Aside from awful body odour, explain THREE health challenges Brendon may experience as a result of these poor personal hygiene practices.[6 marks]

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