A mammal
A) is ectothermic and has a body temperature that fluctuates as the animal derives its heat from the environment.
B) is endothermic and has a body temperature maintained by its own metabolism.
C) is endothermic and has a body temperature that fluctuates as the animal derives its heat from the environment.
D) is ectothermic and has a body temperature maintained by its own metabolism.
Correct Answer:
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