AP 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: -Ectotherm/Ectothermic. A cold-blooded animal; that is, an animal whose body temperature varies with the temperature of its surroundings. Ectotherms cannot produce their own body heat./To be an ectotherm.

Detailed explanation-3: -That is, ectotherm body temperature rises and falls along with the temperature of the surrounding environment. Although ectotherms do generate some metabolic heat-like all living things-ectotherms can’t increase this heat production to maintain a specific internal temperature.

Detailed explanation-4: -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-5: -Ectothermic animals include most invertebrates, fish, amphibians, and non-avian reptiles, with a few exceptions. The following are common ectotherm examples: Frogs and salamanders. Snakes, lizards, alligators, and turtles.