Biology 5090 · O Level · Specialised cells, tissues and organs

Specialised cells, tissues and organs — practice question

The diagram shows a cross-section of the skin. Which row identifies the functions of the labelled parts?

  • Acontrols heat loss from blood: Y; receives an external stimulus: X; releases fluid: Z
  • Bcontrols heat loss from blood: Y; receives an external stimulus: Z; releases fluid: X
  • Ccontrols heat loss from blood: Z; receives an external stimulus: X; releases fluid: Y
  • Dcontrols heat loss from blood: Z; receives an external stimulus: Y; releases fluid: X

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