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  1. Fully revised and updated, the sixth edition of this dictionary provides comprehensive coverage of biology, biophysics, and biochemistry, as well as key terms from medicine and palaeontology.

  2. A theory is a tested and confirmed explanation for observations or phenomena that is supported by a large body of evidence. Science may be better defined as fields of study that attempt to comprehend the nature of the universe.

  3. Oct 31, 2023 · Biology is a natural science concerned with the study of life and living organisms. Modern biology is a vast and eclectic field composed of many specialized disciplines that study the structure, function, growth, distribution, evolution, or other features of living organisms.

  4. Feb 29, 2024 · Science is indeed a strange loop: “a highly refined form of experience” whose bounty lies, in part, in its ability to distill “objects of public knowledge” from experience, in ever-ascending “cycles of abstraction.” But, like a kite, it cannot properly fly if it loses its grounding.

  5. Mar 1, 2000 · Negative entropy maybe useful as a concept of life, but it fails as a useful definition. In this article, I review two alternative definitions—life as reproduction and life as evolution by natural selection—and assess their value by a gedanken, but technically realistic, experiment that reenacts the Viking mission.

  6. Feb 20, 2024 · Defining life is an arduous task that has puzzled philosophers and scientists for centuries. Yet biology suffers from a lack of clear definition, putting biologists in a paradoxical situation where one can describe at the atomic level complex objects that remain globally poorly defined.

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