This document outlines various branches of biology, including anatomy, bacteriology, biochemistry, botany, cytology, dermatology, epidemiology, entomology, ethology, marine biology, mamalogy, mycology, nutrition, ornithology, paleontology, pathology, scatology, physiology, taxonomy, virology, and zoology. It provides brief definitions for each branch, such as anatomy being the study of the structure of living things and bacteriology being the study of bacteria. The document appears to be part of a general biology course covering the different subfields that make up the study of life.