Humming bird belongs to a category called ?
- A. Ectotherm
- B. Endotherm
- C. Exotherm
- D. Heterotherm.
Explanation
Hummingbirds are endotherms because they generate and regulate their body heat internally through metabolism. Ectotherms depend mainly on environmental heat, while heterothermy is a variable-temperature strategy rather than the standard classification here.