Birds and mammals are endothermic. This means that they have a high metabolic rate and generate body heat internally. Animals with a high metabolic rate have a high oxygen demand. Fish, amphibians, and reptiles are ectothermic. This means that they are dependent on the external environment for their body temperature. Thus ectotherms have a much lower metabolic rate than endotherms. Is there a relationship between the presence of a hard palate and endothermy? What possible advantage is gained by the presence of a hard palate? (think about metabolic rates)
Added by Daniel R.
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It plays a crucial role in feeding and breathing, allowing mammals to do both simultaneously without choking. This is particularly important for nursing infants who need to breathe while suckling. Now, let's consider the relationship between the hard palate and Show more…
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Adi S.
Ectotherms use more energy to maintain their body temperature than endotherms. They are better able to carry out intense, long-duration activity than endotherms. Ectotherms have a more constant internal body temperature than endotherms. They gain most of their heat from external sources. Ectotherms have a higher metabolic rate than similarly-sized endotherms.
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Ectotherms and endotherms have different strategies for generating and maintaining body heat. Explain why ectotherms are more dependent on the environment for body heat than endotherms and how endotherms are able to generate and maintain body temperature. a. Ectotherms use external thermal heat whereas endotherms use metabolically generated heat to help regulate and maintain body temperatures. b. Ectotherms use external heat to help regulate and maintain body temperatures whereas endotherms have constantly varying internal temperatures. c. Ectotherms use metabolically-generated heat to maintain a constant body temperature whereas endotherms use metabolically generated heat to regulate body temperature within a wider range. d. Ectotherms use external thermal energy to help regulate and maintain body temperatures whereas endotherms maintain a constant body temperature.
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