Mammals of colder area posses large surface area relative to their volume (2) mammals of warmer area posses larger surface area relative to their volume (3) mammals can regulates homeostasis by physical and physiological mean (4) mammals can show hibernation and aestivation
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Metabolism is inefficient and produces heat. Endotherms use metabolic heat to keep a stable body temperature, while ectotherms do not.
The "baseline" metabolic rate of an animal is measured as the basal metabolic rate (BMR) for an endotherm or as the standard metabolic rate (SMR) for an ectotherm.
Among endotherms, smaller animals tend to have higher per-gram basal metabolic rates (a "hotter" metabolism) than larger animals. The same is true among ectotherms, though we can't compare between the groups.
Metabolic rate varies with activity level. More active animals have a higher metabolic rate than less active animals.
Some animals enter a state of torporin which their metabolism slows. Hibernation in the winter and estivation in the summer are forms of torpor.
Metabolism is inefficient and produces heat. Endotherms use metabolic heat to keep a stable body temperature, while ectotherms do not.
The "baseline" metabolic rate of an animal is measured as the basal metabolic rate (BMR) for an endotherm or as the standard metabolic rate (SMR) for an ectotherm.
Among endotherms, smaller animals tend to have higher per-gram basal metabolic rates (a "hotter" metabolism) than larger animals. The same is true among ectotherms, though we can't compare between the groups.
Metabolic rate varies with activity level. More active animals have a higher metabolic rate than less active animals.
Some animals enter a state of torporin which their metabolism slows. Hibernation in the winter and estivation in the summer are forms of torpor.
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