When a person's respiratory rate is slower than normal, certain conditions, such as bradypnea or apnea, may occur. Bradypnea is characterized by abnormally slow breathing, and may be the symptom of a metabolic disorder or a tumor.
classification, Modern classification is part of the broader science of. taxonomy, the study of the relationships of organisms, which includes collection, preservation, and study of specimens, and analysis of data provided by various areas of biological research.
The classification system is used in 200,000 libraries in at least 135 countries. The major competing classification system to the Dewey Decimal system is the Library of Congress Classification system created by the U.S. Library of Congress.