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  1. Biology - Wikipedia

    Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, origin, …

  2. Biology | Definition, History, Concepts, Branches, & Facts | Britannica

    Dec 5, 2025 · Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, …

  3. What is Biology? – Introduction to Living Systems

    The science of biology is very broad in scope because there is a tremendous diversity of life on Earth. The source of this diversity is evolution, the process of gradual change during which new species …

  4. Biology Basics: Key Concepts and Terminology Explained

    Biology is the scientific study of life, covering a wide range of topics essential for understanding the living world. From the microscopic details of cellular structures to broader ecological systems, biology …

  5. Biology archive | Science | Khan Academy

    The biology archive contains legacy biology content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out Middle School Biology, High School Biology …

  6. Biology - ThoughtCo

    Explore the science of life by learning about the systems and structures that make up the organisms of our world.

  7. Biology - Definition, Branches, Example, Concepts, & History (Updated)

    Nov 25, 2025 · Learn biology with definitions, branches, examples, diagrams, NEET MCQs, and Class 11–12 notes. Covers cell biology, genetics, evolution, ecology, and biotechnology.

  8. Biology - Definition & Meaning, Examples, Branches and Principles

    May 26, 2022 · Biology is the branch of science that primarily deals with the structure, function, growth, evolution, and distribution of organisms. As a science, it is a methodological study of life and living …

  9. Biology - New World Encyclopedia

    The purview of biology extends from the origin of life to the fundamental nature of human beings and their relationship to all other forms of life. Biology, or "life science," offers a window into fundamental …

  10. What is Biology? | Swenson College of Science and Engineering ...

    Biology is a natural science discipline that studies living things. It is a very large and broad field due to the wide variety of life found on Earth, so individual biologists normally focus on specific fields.