NEET BIOLOGY

Detailed explanation-1: -Ectotherm, any cold-blooded animal-that is, any animal whose body temperature control is dependent on external sources such as sunlight or a heated rock surface. Fishes, amphibians, reptiles, and invertebrates are all ectotherms.

Detailed explanation-2: -The ectotherms include the fishes, amphibians, reptiles, and invertebrates.

Detailed explanation-3: -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-4: -Mammals and birds are called endotherms. An endotherm is an animal that can control its internal body temperature.