What are the 100 Branches of Biology?

Biology is the study of life. It is a science that studies living organisms, from the very simple to the very complex. It is not just about understanding what living things are, but also how they work. Biology can be broken down into many different branches, each of which studies a different aspect of living organisms. 

What are the 100 Branches of Biology?

The following are the 100 branches of biology:

  • Acarology — The study of ticks and mites
  • Agrostology — The study of grasses
  • Anatomy — The study of body structures 
  • Angiology — The study of the vascular system
  • Anthropology — The study of apes and man
  • Apiculture — The study of beekeeping
  • Bacteriology — The study of bacteria
  • Biochemistry — The study of chemical reactions in living organisms
  • Biometrics — The statistical analysis of biological experiments
  • Biotechnology — The application of biology for industrial purposes
  • Bryology — The study of Bryophytes
  • Carcinology — The study of crustaceans
  • Cardiology — The study of the heart
  • Chondriology — The study of Cartilage
  • Chromatology — The study of Pigments
  • Cnidology — The study of Coelenterata
  • Conchology — The study of shells
  • Craniology — The study of skulls
  • Cryobiology — The study of the effects of freezing temperature on organisms
  • Cytology — The study of cells
  • Dendrology — The study of shrubs and trees
  • Dermatology — The study of skin
  • Ecobiology — The study of how living organisms interact with the Earth’s ecosystems
  • Ecology — The study of the organism in relation to its environment
  • Embryology — The study of the developmental stages after fertilization
  • Endocrinology — The study of endocrine glands
  • Entomology — The study of insects
  • Enzymology — The study of enzymes
  • Ethnology — The study of human cultures
  • Ethology — The study of the behavior of animals
  • Etiology — The study of the cause of a disease
  • Eugenics — The study of improving human hereditary traits
  • Euphenics — The study of how to make humans better
  • Euthenics — The study of improvement of the human condition
  • Evolution — The study of the origin and variation of organisms from the past to the present days
  • Exobiology — The study of life outside earth
  • Floriculture — The study of flower-yielding plants
  • Genetics — The study of heredity
  • Gynecology — The study of the reproductive organs of women
  • Hematology — The study of blood
  • Helminthology — The study of helminths
  • Herpetology — The study of reptiles
  • Hypnology — The study of sleep
  • Histochemistry — The study of the tissue’s chemical nature
  • Histology — The study of tissue 
  • Horticulture — The study of flowering and fruits plants
  • Immunology — The study of the immune system
  • Karyology — The study of the nucleus
  • Lepidopterology — The study of moths and butterflies
  • Malacology — The study of mollusks
  • Mammology — The study of mammals
  • Melanology — The study of pigments
  • Molecular Biology — The study of biological processes on a molecular level
  • Morphology — the study of the structure and form of organisms
  • Mycology — The study of fungi
  • Myrmecology — The study of ants
  • Neonatology — The study of the new-born
  • Nephrology — The study of kidney
  • Neurology — The study of the nervous system
  • Odontology — The study of teeth and gums
  • Olericulture — The study of vegetable-yielding plants
  • Oncology — The study of cancer
  • Ophthalmology — The study of eyes
  • Ornithology — The study of birds
  • Osteology — The study of bones
  • Palaeozoology — The study of fossil distribution
  • Palaeozoology — The study of fossils of animals
  • Parasitology — The study of parasites
  • Pathology — The study of diseases
  • Parazoology — The study of Porifera (sponges)
  • Pedology — The study of soils
  • Pharmacognosy — The study of medicinal plants
  • Pharmacology — The study of drugs
  • Phenology — The study of natural phenomena
  • Phycology — The study of algae
  • Phylogeny — The study of evolutionary history among living organisms
  • Physiology — The study of the various parts of the body and their functions
  • Platyhelminthology — The study of flatworms
  • Pomology — The study of fruits
  • Pteridology — The study of pteridophytes
  • Rhinology — The study of the nose and olfactory organs
  • Saurology — The study of lizards
  • Serpentology — The study of snakes
  • Silviculture — The study of the development of forests
  • Splanchnology — The study of visceral organs
  • Synecology — The study of bony joints and ligaments
  • Taxonomy — The study of the classification of organisms
  • Toxicology — The study of poisons
  • Trophology — The study of nutrition
  • Urology — The study of the abnormalities of the urinary and urogenital tract
  • Virology — The study of virus
  • Zoogeography — The study of anima distribution
  • Zoology — The study of animals
  • Biophysics — The study of the physical properties of living organisms
  • Ichthyology — The study of fish
  • Phytogeography — The study of plants distribution
  • Paleobotany — The study of the characteristics of plant fossils
  • Sarcology — The study of muscles
  • Syndesmology — The study of joints and ligaments
  • Tectology — The study of the structural organization of the body

What is Biology?

Biology is the study of life and living organisms. It is a natural science that involves the scientific study of life and living organisms including plants, animals, microbes, and other living things, and their structure, function, growth, origin, evolution, distribution, and taxonomy. 

Biology is also the study of animals and their behavior. Biology is a broad term that covers the study of life and living organisms. There are many different branches of biology, each of which studies a different aspect of living organisms. Biology is considered one of the most important fields of natural science.

What is the difference between a scientist and a biologist?

A scientist and a biologist are both scientists, but they have different roles. A scientist is someone who uses the scientific method to study the natural world and make discoveries. A biologist, on the other hand, is someone who studies life and living organisms. 

Scientists are often involved in scientific research and the development of new technologies, including computer science, engineering, and medicine. 

Biologists are scientists who study living organisms in their natural environments. They are focused on the biodiversity of the planet and how to use it to sustain life.

What are some of the most important discoveries in biology?

The following are some of the most important discoveries in biology:

  • The discovery of DNA
  • The discovery of Cell
  • The discovery of heredity
  • The discovery of Antibiotics
  • The discovery of Gene Therapy
  • The discovery of RNA
  • The discovery of Enzymes
  • The discovery of Oxygen in respiration
  • The discovery of blood circulation
  • The discovery of microorganisms
  • The discovery of protein structure

What are the careers in biology?

Biology is a science that studies living organisms and their interactions with their environment. It encompasses a wide range of topics, from the chemistry of life to the study of evolution and genetics. There are many careers in biology, including biologists, environmental scientists, research scientists, educators, marine biologists, veterinarians, and conservationists.


The branches of biology are a very interesting subject. They have many different topics that they cover and they are all fascinating in their own way. Biology is the study of life and living things. It is the science of life and it is a very important subject. It encompasses all aspects of life, from the smallest unit to the largest ecosystem. It is also an ever-changing science as new discoveries are being made all the time.

Frequently Asked Questions (FAQs): What are the 100 Branches of Biology?

What is the basic unit of life?

The cell is the basic unit of life. Every living organism are composed of the cell whether prokaryotic (unicell) or eukaryotic (multicellular)

What is the systematized organization of living things?

Most organisms are organized from the smallest to the biggest like this:

  • Organelles
  • Cell
  • Tissue
  • Organ
  • Organ System
  • Organism
  • Population
  • Ecosystem
  • Biosphere
  • Earth

What are the characteristics of life?

All living things possess the following characteristics:

  • Cellular organization
  • Homeostasis
  • Reproduction
  • Growth/ Development
  • Response to stimuli
  • Adaptation
  • Metabolism 


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100 Branches of Biology from A to Z: All Branches – Leverage Edu. Retrieved from https://leverageedu.com/blog/branches-of-biology/

Branches of Biology – Biology Online Dictionary. Retrieved from https://www.biologyonline.com/dictionary/branches-of-biology

Branches of Biology | Divisions of Biology | Fields of Biology. Retrieved from https://www.bioexplorer.net/divisions_of_biology/