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#Question id: 9578


Bergmann’s rule states that,

#XL - T Zoology
  1. Hot Temperatures Limit Many Species’ Distributions
  2. among closely related endothermic (warm-blooded) vertebrates, those living in colder environments tend to have shorter appendages than those living in warmer environments.
  3. among closely related mammals or birds, the largest species occurred at higher latitudes, where it is colder.
  4. the frequency of the cyanide-producing form is less common in colder regions