NEET BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Ectotherms depend mainly on external heat sources, and their body temperature changes with the temperature of the environment. Animals exchange heat with their environment through radiation, conduction-sometimes aided by convection-and evaporation.

Detailed explanation-3: -What is an example of an ectotherm? Ectothermic animals include most reptiles, amphibians, invertebrates, and fish. A specific example of an ectotherm includes a turtle, which must bask in the sun for heat and retreat to cooler waters when temperatures become too warm.

Detailed explanation-4: -What are Endothermy and Ectothermy? Birds and mammals (such as humans) are ‘warm-blooded’ animals called endotherms. Endotherms generate heat using their own bodies. Reptiles, amphibians, and fish are ‘cold-blooded’ or ectotherms.

Detailed explanation-5: -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.