Biology has ten subdivisions, which will be listed here, along with explanations on what they mean.
Anatomy is the study of the structure of organisms, such as the human body.
Bacteriology is the study of bacteria.
Botany is the study of plants.
Cytology is about cells and how they work.
Ecology is the study of the relationship between living things and their environment.
Ophthalmology is the study of the human eye and its diseases.
Pathology is the study of diseases.
Physiology is the study of functions of organisms, organs, tissues, cells, organelles, etc.
Radiology is about what x-rays can reveal about living things.
Virology is the study of viruses.