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Chapter 22BiologyUpdated

Subdivisions of Biology

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Biology: Core Framework

  • Biology is the branch of natural science concerned with living organisms, including their structure, function, growth, development, reproduction, heredity, evolution, distribution and interactions with the environment.

  • The term science derives from the Latin scientia, meaning knowledge.

  • Natural sciences broadly include:

    • Physical sciences
    • Earth and space sciences
    • Life sciences, including biology
  • Jean-Baptiste Lamarck and Gottfried Reinhold Treviranus independently used the term biology in its modern sense in 1802.

  • Biology has expanded into numerous specialised branches based on:

    • the organism studied;
    • the level of biological organisation;
    • the biological process investigated;
    • the environment or relationship studied;
    • the practical application of biological knowledge.

Inside this chapter

What Subdivisions of Biology covers

  1. Biology: Core Framework
  2. Fundamental Branches of Biology
  3. Genetics, Development and Evolution
  4. Fossils and Ancient Life
  5. Ecology and Environmental Biology
  6. Soil-Related Biological Sciences
  7. Quantitative and Interdisciplinary Biology
  8. Branches Based on Major Groups of Organisms
  9. Zoological Specialisations
  10. Important Botanical Specialisations
  11. Medical and Health-Related Branches
  12. Ageing: Gerontology vs Geriatrics
  13. Nutrition and Population Studies
  14. Historical and Obsolete Concepts
  15. Applied Biology and Cultivation
  16. Aquatic Production Systems
  17. Plant and Crop Cultivation Terminology
  18. Special Agricultural Terms
  19. Soilless Cultivation
  20. High-Yield Scientists and Contributions
  21. Rapid Recall: Branch → Subject
  22. Rapid Recall: Organism → Branch
  23. Rapid Recall: Cultivation → Product
  24. Common Confusions
  25. Prelims Traps
All 30 chapters in Science and Technology
  1. Measurement/Unit
  2. Measuring instruments and Scales
  3. Mechanics
  4. Motion under Gravity
  5. Physical properties of matter
  6. Optics
  7. Heat and Thermodynamics
  8. Wave motion
  9. Sound
  10. Electric current
  11. Conductivity
  12. Nuclear Physics
  13. Atomic Structure
  14. Physical and Chemical Changes, Solution
  15. Inorganic Chemistry
  16. Metals, Minerals, Ores: Properties, Uses
  17. Alloys
  18. Non-metals
  19. Food preservation, Nutrition, Medicine, etc.
  20. Detergents and Soap
  21. Miscellaneous
  22. Subdivisions of Biology
  23. Evolution of Life
  24. Taxonomy
  25. Cell
  26. Heredity
  27. Biofertilizers
  28. Human Anatomy and Physiology
  29. Plant Physiology
  30. Diseases and Treatment

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In the official syllabus

UPSC Civil Services Examination