Which is the most important and most common characteristic of endotherms adapted to cold climates compared with those adapted to warm climates? A) Higher basal metabolic rates B) Higher Q₁₀ values C) Brown fat D) Greater insulation E) Ability to hibernate

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Quizplus · Accepted Answer

The most important and most common characteristic of endotherms adapted to cold climates is greater insulation. This can include thick fur, feathers or blubber, and helps retain heat in the body. Higher basal metabolic rates (A) are seen in endotherms in general, but not specifically in those adapted to cold climates. Q₁₀ values (B) refer to the thermoneutral zone and do not specifically relate to adaptations for warm or cold climates. Brown fat (C) is a type of adipose tissue that generates heat and is more commonly found in newborns and some hibernating animals, but is not necessarily a defining characteristic of endotherms adapted to cold climates. Hibernation (E) is a strategy employed by some animals to survive the winter, but is not a characteristic of all endotherms adapted to cold climates.

Which Is the Most Important and Most Common Characteristic of Endotherms