Which of the following statements best supports the speculation that large dinos

Question

Which of the following statements best supports the speculation that large dinosaurs may have had some degree of endothermy?

A. Their large bodies would have required some capacity for internal heat generation even in cold conditions

B. Because their surface area to volume ratio probably would not have allowed for enough heat exchange with their environment, they would have increased internal temperatures as a result.

C. They would have had a high intake of nitrogen, which leads to endothermy.

D. We have evidence that they evolved from endothermic ancestors.

E. All of the above.  

Explanation / Answer

Among the following statements the statement which supports the speculation that large dinosaurs may have had some degree of endothermy is that their surface area to volume ratio probably would not have allowed for enough heat exchange with their environment, they would have increased internal temperatures as a result.

Hence option B is correct

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