The main selective advantage of endothermy appears to be the relative instability of body temperature in endothermic species. ability to sustain high levels of muscular activity. lower energy requirements. greater differential between metabolism during rest and during activity.
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Endothermy is the ability of an organism to maintain its body temperature through internal metabolic processes. The question asks for the main selective advantage of this trait. Show more…
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3. Being endothermic provides certain advantages to birds and mammals – they can have a much higher activity level than ectothermic taxa, and they can be active when ectotherms typically cannot, e.g. at night and in very cold areas such as those at high elevations or high latitudes. However, endothermy requires a number of changes in various body systems to work. Birds and mammals have solved the problems associated with endothermy and higher activity levels using some of the same solutions, but also different ones that achieve the same end. Give some examples of those solutions.
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