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GK QUESTION#4020

What does Allen’s rule explain?

  1. AMammals in cold climates have shorter ears and limbs to reduce heat loss.Correct answer
  2. BDesert animals store water in their limbs.
  3. CPlants in deserts have broad leaves for cooling.
  4. DAnimals in mountains have thicker fur only.
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Answer

A. Mammals in cold climates have shorter ears and limbs to reduce heat loss.

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Explanation

Allen’s rule describes a broad tendency for endothermic animals in colder climates to have relatively shorter appendages, such as ears and limbs, reducing heat loss. It is a comparative ecological pattern with exceptions, not a rule about every individual or all animal groups.

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