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Question

What is the word used to describe living beings who can tolerate a wide range of temperatures?

A
Poikilotherms
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B
Stenotherms
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C
Ectotherms
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D
Eurytherms
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Solution

The correct option is D Eurytherms
Eurytherms are organisms that can survive a wide range of temperatures.

In contrast, stenotherms can function only in a narrow range. Fishes, for example Salvelinus fontinalis, that is Brook trout, a type of endemic species, can survive only between 13 to 18 degree Celsius. Other examples of stenotherms are reptiles and seals.
Poikilotherms are cold-blooded animals that track environmental temperatures. Ectotherms are again another name for cold-blooded animals whose body temperature changes in response to environmental temperatures.

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