Describe the adaptations of homeothermal animals that allow them to maintain a constant body temperature.

Homeothermic animals maintain their temperature by increasing the metabolic rate, increasing the breakdown of brown fat, muscle tremors, hibernation, sweating, and adaptive behavior (choosing places for protection from heat or cold). Heat-insulating covers (feather or hair), subcutaneous fat, vascular reactions (expansion and contraction) also contribute to a decrease in heat loss.

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