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Biology

Biology is the study of life and living organisms, including their physical structure, chemical processes, development and evolution. While biology covers complex subjects, there are three main unifying concepts: cells as the basic unit of life, genes as the basic unit of heredity, and evolution as the mechanism that creates and eliminates species over time. Living things are also open systems that maintain homeostasis by transforming energy to decrease local entropy.

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Marie Miralles
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47 views1 page

Biology

Biology is the study of life and living organisms, including their physical structure, chemical processes, development and evolution. While biology covers complex subjects, there are three main unifying concepts: cells as the basic unit of life, genes as the basic unit of heredity, and evolution as the mechanism that creates and eliminates species over time. Living things are also open systems that maintain homeostasis by transforming energy to decrease local entropy.

Uploaded by

Marie Miralles
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Biology is the natural science that studies life and living organisms, including their physical structure, chemical

processes, molecular interactions, physiological mechanisms, development and evolution.[1] Despite the complexity of


the science, there are certain unifying concepts that consolidate it into a single, coherent field. Biology recognizes
the cell as the basic unit of life, genes as the basic unit of heredity, and evolution as the engine that propels
the creation and extinction of species. Living organisms are open systems that survive by transforming energy and
decreasing their local entropy[2] to maintain a stable and vital condition defined as homeostasis.[3]
Sub-disciplines of biology are defined by the research methods employed and the kind of system studied: theoretical
biology uses mathematical methods to formulate quantitative models while experimental biology performs empirical
experiments to test the validity of proposed theories and understand the mechanisms underlying life and how
it appeared and evolved from non-living matter about 4 billion years ago through a gradual increase in the complexity
of the system.[4][5][6] See branches of biology.

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