EVERYDAY SCIENCE

Detailed explanation-1: -Reptiles and amphibians are ectotherms, while birds are endotherms. 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.

Detailed explanation-2: -In vertebrates, endothermy is typically associated with birds and mammals while fishes, amphibians, and reptiles are generally typified as ectotherms.

Detailed explanation-3: -Most reptiles and amphibians (as well as most fish and invertebrates) are examples of ectothermic animals. First off, the origin of the word. Ecto means “outer” or “outside” and therm means “heat.” Therefore, ectothermic animals are those that rely on the environment to maintain body temperature.

Detailed explanation-4: -They derive their body heat entirely from their environment. Example-Fishes, amphibians, reptiles, & invertebrates. Therefore, poikilotherms & ectotherms are synonymous.

Detailed explanation-5: -ectotherm, any so-called cold-blooded animal-that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.