Biology 0610 · IGCSE · Homeostasis

Homeostasis — practice question

A scientist carried out an investigation into how drinking iced water affects skin temperature. They consumed a large volume of iced water and recorded their skin temperature. The results are displayed on the graph of skin temperature ($^\circ\text{C}$) against time after drinking iced water (minutes). Which explanation for the change in skin temperature during the first $10$ minutes is correct?

  • AVasoconstriction occurred increasing blood flow to the skin.
  • BVasoconstriction occurred reducing blood flow to the skin.
  • CVasodilation occurred increasing blood flow to the skin.
  • DVasodilation occurred reducing blood flow to the skin.

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