NEET BIOLOGY

Detailed explanation-1: -Animals that cannot generate internal heat are known as poikilotherms (poy-KIL-ah-therms), or cold-blooded animals. Insects, worms, fish, amphibians, and reptiles fall into this category-all creatures except mammals and birds.

Detailed explanation-2: -Cold-blooded animals do not maintain a constant body temperature. They get their heat from the outside environment, so their body temperature fluctuates, based on external temperatures. If it is 50 °F outside, their body temperature will eventually drop to 50 °F, as well.

Detailed explanation-3: -Cold-blooded animals can be defined as animals that cannot regulate their internal body temperature with the change in the environment. They cannot survive in extreme temperature conditions. Examples of cold-blooded animals are reptiles, fish, etc.

Detailed explanation-4: -Warm-blooded animals, such as mammals and birds, were able to maintain their body temperature regardless of the surroundings. Cold-blooded animals, such as reptiles, amphibians, insects, arachnids and fish, were not.