Bergmann's rule:
a. ?states that bodies with increased mass or volume to surface area are optimal for cold climates.
b. ?is based upon the principle that as arms increase in length, there is a corresponding increase in surface area.
c. ?is based on the principle that heat is retained at the body surface.
d. ?concerns the relationship between climate and shape and size of appendages.
e. ?states that a linear body with long arms and legs is optimal for cold climates.
a
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