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What are the major branches of biology?
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Biology
A researcher using a microscope to examine a specimen in the laboratory.
Biology is the study of living things and their vital processes, encompassing a wide range of specialized fields that are interconnected by fundamental principles. Because the subject is vast, it is subdivided into various branches for convenience of study.1
These branches can be categorized by the level of biological organization or by the specific type of organism being studied:
- Levels of Organization: Biology is often approached by examining life at different scales, ranging from molecular biology and cell biology to the study of whole organisms and population biology.1
- Organism-Specific Fields: Researchers may focus on particular groups, such as botany (plants), zoology (animals), ornithology (birds), ichthyology (fishes), or microbiology (microorganisms).1
- Functional and Structural Specializations: Other branches focus on specific aspects of life, including morphology (structure), physiology (function), genetics, ecology, and taxonomy.1
Modern biology also frequently integrates principles from other scientific disciplines, leading to interdisciplinary fields such as biochemistry and biophysics.1