Birds can regulate their own body temperature. Scientists say they are..
-
Endothermic
-
Exothermic
-
Ectothermic
-
None of the above
A
Correct answer
Explanation
Birds are endothermic, meaning they generate internal heat through metabolic processes to maintain a constant body temperature regardless of environmental conditions. This contrasts with ectothermic animals like reptiles that rely on external heat sources. 'Endothermic' literally means 'heat from within.'