A dog cools itself by panting because
- A. panting draws cold air into the lungs
- B. dogs sweat heavily from the skin
- C. panting raises the metabolic rate
- D. evaporation from the tongue and airways removes heat
Explanation
With few sweat glands, dogs rely on evaporating water from the moist surfaces of the mouth and lungs. Rapid shallow breathing maximises this evaporation without disturbing blood gases.
Related questions
Ultrafiltration in the glomerulus is driven by
Which of the following is normally absent from glomerular filtrate?
All the glucose in the filtrate is normally reabsorbed in the
A desert mammal can produce very concentrated urine because it has
Antidiuretic hormone controls the water content of the blood by