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  1. Life - Wikipedia

    Life exists all over the Earth in air, water, and soil, with many ecosystems forming the biosphere. Some of these are harsh environments occupied only by extremophiles. The life in a particular …

  2. Life | Definition, Origin, Evolution, Diversity, & Facts | Britannica

    Dec 13, 2025 · Life-forms present on Earth today have evolved from ancient common ancestors through the generation of hereditary variation and natural selection.

  3. LIFE Definition & Meaning | Dictionary.com

    LIFE definition: the condition that distinguishes organisms from inorganic objects and dead organisms, being manifested by growth through metabolism, reproduction, and the power of …

  4. LIFE | English meaning - Cambridge Dictionary

    LIFE definition: 1. the period between birth and death, or the experience or state of being alive: 2. for the whole…. Learn more.

  5. Beginnings: Life on Our World and Others - Science@NASA

    Jun 13, 2023 · Life on Earth inhabits a shockingly diverse range of conditions, from deep cold to caustic, boiling pools, but all appear to require liquid water. Scientists expect water to be …

  6. What Is Life? | Issue 101 | Philosophy Now

    Life is the aspect of existence that processes, acts, reacts, evaluates, and evolves through growth (reproduction and metabolism). The crucial difference between life and non-life (or non-living …

  7. The Meaning of Life: Contemporary Analytic Perspectives

    In this case, meaningful life (or meaning in life) is about ordering one’s life around self-determined purposes. We also distinguish actions done on purpose from those done by accident.

  8. What is life? | Molecular Biology Reports - Springer

    Jul 27, 2021 · We can define life in very different ways depending on the context and the focus we want to give to the definition. For example, we can define life as the period from birth to death …

  9. Defining Life - PMC

    Under the RNA world model for life on early Earth, life is possible without proteins. Indeed, this model claims that we are all descendents of a form of life that lived without proteins and …

  10. LIFE Definition & Meaning - Merriam-Webster

    The meaning of LIFE is the quality that distinguishes a vital and functional being from a dead body. How to use life in a sentence.