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The definition of life has long been a challenge for scientists and philosophers. This is partially because life is a process, not a substance. This is complicated by a lack of knowledge of the characteristics of living entities, if any, that may have developed outside Earth.
life, living matter and, as such, matter that shows certain attributes that include responsiveness, growth, metabolism, energy transformation, and reproduction. Although a noun, as with other defined entities, the word life might be better cast as a verb to reflect its essential status as a process.
LIFE definition: 1. the period between birth and death, or the experience or state of being alive: 2. for the whole…. Learn more.
Learn about the basic properties of life as well as ongoing debates about the definition of life. Introduction In the intro to biology video, we defined biology as the branch of science concerned with the study of living things, or organisms.
c. : an organismic state characterized by capacity for metabolism (see metabolism sense 1), growth, reaction to stimuli, and reproduction. 2. a. : the sequence of physical and mental experiences that make up the existence of an individual.
