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7 marksTransport Systems

CSEC Biology · January 2012 · Paper 2 · Question 5(b)(i)

Suggest why vaccination is NOT effective in the prevention, treatment or control of most diseases of the heart and blood vessels.

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Other parts of this question

  1. 5(a)With the aid of a fully labelled diagram of the heart, explain how blood is pumped to the rest of the body.[8 marks]
  2. 5(b)(ii)Explain why there is an increase in the number of white blood cells in a patient following heart surgery.[7 marks]

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