Quelpr
4 marksVectors, Microorganism Control and Immunity

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

Consider historical trends in disease control.

Explain TWO factors that have contributed to the decline in both the incidence and mortality rates of infectious diseases since 1900.

The mark scheme is shown once you've answered.

Practise this question

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)(i)Identify the age group that is most severely affected by AIDS.[1 mark]
  5. 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]
  6. 1(b)(iii)Predict THREE aspects of the socioeconomic future for the population depicted in Figure 2.[3 marks]

More practice: the rest of this paper · more Vectors, Microorganism Control and Immunity questions · all CSEC Human and Social Biology past papers