NEET BIOLOGY

Detailed explanation-1: -Reptiles are cold blooded organisms or poikilotherms which means they are not able to regulate their body temperatures. Their body temperatures change with the change in temperature of the environment. For example, if the outer temperature rises their body temperature also rises and vice-versa.

Detailed explanation-2: -The reptile’s body temperature rises when the external temperature rises. When the temperature drops, so does his body temperature. If a reptile feels cold because the external temperatures have made his blood cold, he’ll lie in the sun to warm up.

Detailed explanation-3: -Amphibians and reptiles are ectotherms that control their body temperature through external sources such as basking in the sun to warm up. Ectotherms are sometimes known as “cold-blooded” animals, but this is not an accurate term since the blood of a snake basking on a hot rock during a summer afternoon is not cold.

Detailed explanation-4: -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-5: -The majority of reptiles gain heat quicker than they lose it so if a reptile cannot cool down, their body temperatures can rise to dangerous levels. Thermoregulation in reptiles affects a wide range of processes in the animal. A cold reptile moves slower than a warm one.