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1 markSexually Transmitted Infections and Chronic Diseases

CSEC Human and Social Biology · January 2016 · Paper 2 · Question 1(b)(i)

A population pyramid chart displays the distribution of males and females across age groups, categorised by whether they have AIDS or not.

Identify the age group that is most severely affected by AIDS.

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Other parts of this question

  1. 1(a)(i)Identify structure B shown in Figure 1 and state its function.[2 marks]
  2. 1(a)(ii)Label A indicates a cavity. State TWO factors required for tooth decay to occur.[2 marks]
  3. 1(a)(iii)State TWO measures, other than altering diet, that reduce cavity formation.[2 marks]
  4. 1(b)(ii)Based on Figure 2, determine whether the male or female population has more individuals suffering from AIDS in the 45–69 age bracket.[1 mark]
  5. 1(b)(iii)Predict THREE aspects of the socioeconomic future for the population depicted in Figure 2.[3 marks]
  6. 1(c)Explain TWO factors that have contributed to the decline in both the incidence and mortality rates of infectious diseases since 1900.[4 marks]

More practice: the rest of this paper · more Sexually Transmitted Infections and Chronic Diseases questions · all CSEC Human and Social Biology past papers