AP Success - AP Biology Conceptual Analysis: Energetics - Thermodynamics and Homeostasis

A team of scientists is studying the thermoregulation in a species of desert lizard, the Gila monster. The Gila monster is a poikilotherm, meaning its body temperature varies with the environment. During the day, the lizard basks in the sun to raise its body temperature, and at night, it burrows into the sand to avoid the cold.

Describe the concept of homeostasis as it applies to the Gila monster's body temperature regulation.

The Gila monster's body temperature can range from 15°C at night to 35°C during the day. Explain how the principles of thermodynamics apply to the Gila monster's body temperature regulation.

If the Gila monster were to be moved to a colder environment, predict how its body temperature regulation might change.

Scientists claim that the Gila monster's thermoregulation strategy is more energy-efficient than that of homeotherms (animals that maintain a constant body temperature). Provide reasoning to justify their claim.