Life

Life (cf. biota) is a characteristic that distinguishes objects that have signaling and self-sustaining processes (biology) from those that do not,[1][2] either because such functions have ceased (death), or else because they lack such functions and are classified as inanimate.[3]

In biology, the science of living organisms, life is the condition which distinguishes active organisms from inorganic matter.[4] Living organisms undergo metabolism, maintain homeostasis, possess a capacity to grow, respond to stimuli, reproduce and, through natural selection, adapt to their environment in successive generations. More complex living organisms can communicate through various means.[1][5] A diverse array of living organisms (life forms) can be found in the biosphere on Earth, and the properties common to these organisms—plants, animals, fungi, protists, archaea, and bacteria—are a carbon– and water-based cellular form with complex organization and heritable genetic information.

In philosophy and religion, the conception of life and its nature varies. Both offer interpretations as to how life relates to existence and consciousness, and both touch on many related issues, including life stance, purpose, conception of a god or gods, a soul or an afterlife.

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