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1 markThe Skeletal System

CSEC Human and Social Biology · January 2008 · Paper 2 · Question 1(b)(i)

Mary pulls her arm away after being pricked by a rose thorn.

State whether the muscle in Mary's arm contracts or relaxes when she pulls away her arm.

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Other parts of this question

  1. 1(a)Name THREE characteristics of living organisms.[3 marks]
  2. 1(b)(ii)Suggest TWO features of the arm muscle that enable this response.[2 marks]
  3. 1(b)(iii)Describe the process that generates the energy needed for this movement.[3 marks]
  4. 1(b)(iv)Identify whether the process in (iii) is aerobic or anaerobic respiration.[1 mark]

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