Some animals allow their body temperature to conform to the environment.What is the old term for these animals,and what is the newer preferred term?

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The old term for animals that allow their body temperature to conform to their environment is poikilotherms, but the newer preferred term is ectotherms. This is because the term poikilotherm implies that the organism's internal temperature is constantly fluctuating, when in reality many ectotherms are able to regulate their body temperature to some degree.

Some Animals Allow Their Body Temperature to Conform to the Environment.What