Which statement best represents the difference between ectotherms and endotherms?
A) Ectotherms rely on homeostatic mechanisms to maintain body temperature.
B) Ectotherms have a very high daily energy expenditure.
C) Endotherms rely on behavior modification to maintain their body temperature.
D) Ectotherms derive heat from metabolic processes.
E) Ectotherm animals outnumber endotherms.

Question

Quizplus · Accepted Answer

Ectotherms, such as reptiles and amphibians, primarily regulate their body temperature through external means, such as basking in the sun or seeking shade, rather than through internal metabolic processes. Endotherms, like mammals and birds, generate heat through metabolic processes to maintain a constant body temperature. The statement about ectotherm animals outnumbering endotherms is correct, as the majority of animal species on Earth, including all invertebrates, fish, amphibians, and reptiles, are ectothermic.

Which Statement Best Represents the Difference Between Ectotherms and Endotherms