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Biology · Oct / Nov 2019 · Paper 11 · Question 20

5090Temperature control

The diagram represents a section through the skin. Which row shows the functions of the labelled parts?

  1. Acontrols heat loss from blood: Y; receives an external stimulus: X; releases fluid: Z
  2. Bcontrols heat loss from blood: Y; receives an external stimulus: Z; releases fluid: X
  3. Ccontrols heat loss from blood: Z; receives an external stimulus: X; releases fluid: Y
  4. Dcontrols heat loss from blood: Z; receives an external stimulus: Y; releases fluid: X

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Correct answer: A. controls heat loss from blood: Y; receives an external stimulus: X; releases fluid: Z

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