AN100 Lecture 5: BIO 111 Final Study Guide (Autosaved)
Document Summary
Thermal physiology: thermal physiology is how animals adapt to temperature change in the environment. Ex: animals that live in very cold places have thick fur. But why do animals that live in hot places like. African mammals need to have fur as well: metabolic rate, if you are interested in the energy usage by animals, the standard way to look at that is by measuring metabolic rate. Metabolic rate is the amount of energy released by the animal: old method called direct calorimetry: which is measuring energy lost as heat by the animal, or heat production. This is called indirect calorimetry: measuring the oxygen consumption gives you a good measure of the metabolic rate of the animal: smaller animals have higher (mass specific) metabolic rates. Ex: shrews have a much higher metabolic rate pound per pound than an elephant. This has to do with the ratio of surface area to volume. As an animal increases in size, that ratio decreases.
