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.
Dewey Decimal Classification. Dewey Decimal Classification (DDC) The Dewey Decimal Classification (DDC) system is one of the worldâs most widely used library classification system; but not in law libraries. The four-volume print last edition includes thousands of updates added to the system over the past seven years.