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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 …

Oct 3, 2025 · Life comprises individuals, living beings, assignable to groups (taxa). Each individual is composed of one or more minimal living units, called cells, and is capable of …

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.

Explore the origin of life, from chemical precursors to cellular structures, and understand evolutionary processes that shaped life on Earth.

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

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.

All groups of living organisms share several key characteristics or functions: order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, …

A difficult term to define, life can be considered the characteristic state of living organisms and individual cells, or that quality or property that distinguishes living organisms from dead …

Aug 15, 2025 · In this Back To School episode we consider the "List of Life": the criteria that define what it is to be a living thing. Some are easy calls: A kitten is alive. A grain of salt is …