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.

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.

Experience LIFE's visual record of the 20th century by exploring the most iconic photographs from one of the most famous private photo collections in the world.

Learn about the basic properties of life as well as ongoing debates about the definition of life.

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

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 organisms and …

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

Someone's life is the period of time during which they are alive. He spent the last fourteen years of his life in retirement.

Sep 11, 2025 · Life quotes help inspire and motivate you. Find positive quotes about life, inspirational sayings, and more to help give you a fresh perspective.