Panting is a representative of which mechanism?

Correct answer: C. Evaporative cooling.

  • A. Pigmentation.
  • B. Respiration.
  • C. Evaporative cooling.
  • D. Excretion.

Explanation

Panting increases evaporation of water from the respiratory passages, and evaporation removes heat from the body. It is therefore a form of evaporative cooling, especially important in dogs and some other mammals. Students may choose respiration because panting involves rapid breathing, but its thermoregulatory purpose is cooling rather than gas exchange alone.

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