Which Organism is an Endotherm

Question

Which organism is an endotherm?
A) a mouse
B) an insect
C) a salmon
D) a frog

Accepted Answer

An endotherm is an organism that can regulate its own body temperature through internal mechanisms such as shivering or sweating. Mice are endotherms, meaning they can maintain a constant body temperature regardless of external temperatures. Insects, salmon, and frogs are ectotherms, meaning their body temperature is regulated by the environment around them.