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 ecosystem …

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

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

Nov 30, 2021 · A wide range of practices rely on competing conceptions of life: including artificial life, origins-of-life research, the search for life, and other projects described above.

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

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.

Life is a concept in biology. It is about what separates a living thing from dead matter. Most life on Earth is powered by solar energy: the only known exceptions are the chemo-synthetic bacteria living …

Your life is the time from your birth to your death — you can see this in its origins: "to remain, persevere, continue, live." Life is everything that happens: When people say, "That's life," they mean all the …

Dec 13, 2025 · The fundamental pattern, both in form and in matter, of all life on Earth is essentially identical. Also, as noted in this section, this identity implies that all organisms on Earth are evolved …

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