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, evolution, and distribution of life.

Biology | Definition, History, Concepts, Branches, & Facts | Britannica
biology, study of living things and their vital processes. The field deals with all the physicochemical aspects of life.

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

What is Biology? The Living Science of Life
Biology is the study of living organisms and the processes that sustain them. It explores how life begins, how it grows, how it adapts, and how it interacts with the environment.

iBiology | Free Biology Videos, Lectures, and Online Courses
Learn from world class scientists with 600+ biology videos including lectures, talks, animations & professional development courses.

What Is Biology? - sciencenewstoday.org
Biology is the scientific study of life in all its extraordinary forms. It explores the structure, function, growth, reproduction, evolution, and interactions of living organisms, from microscopic cells to vast ecosystems that span the planet.

Ch. 1 Introduction - Biology 2e | OpenStax
Scientists believe that the first forms of life on Earth were microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 250 million years ago.

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 principles shared by living organisms.

1.1 The Science of Biology - Biology 2e | OpenStax
What is biology? In simple terms, biology is the study of life. This is a very broad definition because the scope of biology is vast. Biologists may study anything from the microscopic or submicroscopic view of a cell to ecosystems and the whole living planet (Figure 1.2).

Khan Academy
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