What is the difference between an ectotherm and an endotherm?


Endotherms produce their own heat; ectotherms rely on environmental heat. Most ectotherms are cold-blooded while most endotherms are warm-blooded, but there are exceptions. Mammals are endotherms, and reptiles and amphibians are ectotherms.

Ectotherms must absorb heat from their environment to maintain their body temperature, and the weather can have a profound effect on their behavior. However, they do not have to eat as much as their endotherm counterparts. Crocodiles and alligators, for example, can go weeks or months without eating, but they also remain inactive during most of the day and save their energy for eating, mating and protecting their territory. Endotherms, on the other hand, are able to produce far more energy but must eat regularly. Mammals tend to be more active than reptiles, but they must eat far more to survive.

Scientists are still not sure whether dinosaurs should be classified as endotherms or ectotherms. If dinosaurs were cold-blooded, they would have been far slower than many experts believe. If they were warm-blooded, they would have had to eat a tremendous amount of food. Many now believe that dinosaurs were neither true endotherms nor true ectotherms and had a unique metabolism. This may be why they died off while many reptiles and amphibians survived.

Q&A Related to "What is the difference between an ectotherm..."
Ectotherm- an animal whose body temperature changes with the temperature of its surrounding environment. Endotherm- an animal whose body temperature does not change with its surrounding
1. Define an endotherm as a warm-blooded animal. Discuss a few different examples of warm-blooded animals, such as mammals, and how their body temperatures stay the same no matter
Ectotherms, also known as cold-blooded animals, warm their bodies by absorbing heat form their surroundings. These animals have large variations in normal body temperature due to
An ectotherm is a cold-blooded animal or An organism that
1 Additional Answer
Ask.com Answer for: difference between ectotherm and endotherm
How to Teach the Difference Between Endotherm and Ectotherm
An endotherm is an animal whose body temperature remains the same no matter what the surrounding temperature is, while an ectotherm's body temperature changes just as the temperature of its surroundings change. Endotherms produce body heat and include... More »
Difficulty: Moderately Easy
Source: www.ehow.com
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com