Question

Distinguish between the following:

Ectotherms and Endotherms

Answer 1

Sr. No.	Ectotherms	Endotherms
1.	These are cold-blooded animals.	These are warm-blooded animals.
2.	Ectotherms do not possess the ability to generate sufficient heat to keep them warm; thus, their body temperature varies with their surroundings	Endotherms do possess the ability to generate heat and keep themselves warm; thus, they can maintain a constant body temperature.
3.	They are also known as poikilothermic.	They are also known as homeothermic.
4.	They are affected by changes in environmental temperature.	They remain unaffected by changes in environmental temperature.
5.	For example, fishes, amphibians, and reptiles.	For example, birds and mammals.