This document outlines various branches of biology, including agronomy which is the study of crops and soils; anatomy which is the study of living structures; and ecology which is the study of organism interactions within environments. Other branches mentioned are bacteriology, biochemistry, biogeography, botany, cytology, embryology, entomology, ethology, genetics, horticulture, ichthyology, microbiology, oceanography, paleontology, physiology, taxonomy, virology, and zoology.