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3 marksCoordination and Control

CSEC Human and Social Biology · January 2016 · Paper 2 · Question 4(c)

Sheena accidentally touches a hot teapot and drops it instantly without prior thought.

Determine whether Sheena's action is voluntary or involuntary, and explain the key differences between voluntary and involuntary actions.

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Other parts of this question

  1. 4(a)(i)State the function of each of the parts labelled A, B, and C in Figure 3.[3 marks]
  2. 4(a)(ii)Explain what occurs within the eye that leads to the development of glaucoma.[2 marks]
  3. 4(b)(i)Identify the regions or components labelled A, B, and C in Figure 4.[3 marks]
  4. 4(b)(ii)Explain the mechanism of a knee jerk spinal reflex.[4 marks]

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