How Do Endotherms and Ectotherms Differ

Endotherms use internally generated heat to maintain body temperature. Their body temperature tends to stay steady regardless of environment. Ectotherms depend mainly on external heat sources, and their body temperature changes with the temperature of the environment.

What is the difference between Endotherms and ectotherms?

An ectotherm (reptile/amphibian) relies primarily on its external environment to regulate the temperature of its body. Endotherms (birds) are able to regulate their body temperatures by producing heat within the body.

How do the metabolic rates of Endotherms and ectotherms differ?

Endotherms use metabolic heat to keep a stable body temperature, while ectotherms do not. … Metabolic rate varies with activity level. More active animals have a higher metabolic rate than less active animals.