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Mammals from cold climates have shorter ears and limbs to:

AMinimise heat loss
BRun much faster
CHear far better
DDig deep burrows
Answer & Solution
Correct answer: A. Minimise heat loss
1. Ears and limbs are surfaces that lose heat. 2. Shorter ones lose less. 3. That is Allen's rule. _Source: syllabus Biology, Chapter 13, Organisms and Populations._
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