2 marksVectors, Microorganism Control and Immunity

CSEC Human and Social Biology · May/June 2009 · Paper 2 · Question 6(a)(ii)

Drug abuse and commonly abused substances.

Name TWO commonly abused legal (social) drugs in the Caribbean.

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Other parts of this question

6(a)(i)Define the term 'drug abuse'.[1 mark]
6(b)(i)Suggest how smoking causes babies to be smaller than normal.[2 marks]
6(b)(ii)Describe the effect of nicotine on infants when it passes across the placental barrier.[1 mark]
6(b)(iii)Name ONE other way in which nicotine may be passed to an infant from the mother.[1 mark]
6(c)Suggest TWO effects of maternal alcohol consumption on the foetus.[2 marks]
6(d)Identify the form of immunity passed from mother to baby via breast milk.[1 mark]

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