What is organism?

  • (noun): A living thing that has (or can develop) the ability to act or function independently.
    Synonyms: being
    See also — Additional definitions below


In biology, an organism is any contiguous living system (such as animal, fungus, micro-organism, or plant). In at least some form, all types of organisms are capable of responding to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole.

Read more about Organism.

Some articles on organism:

Aquatic Locomotion - Micro-organisms - Ciliates
... are multiple cilia packed together on an individual organism, they display collective behavior in a metachronal rhythm ... the deformation of its neighbor, causing deformation waves that propagate along the surface of the organism ... These propagating waves of cilia are what allow the organism to use the cilia in a coordinated manner to move ...
Largest Organisms - Fungi
... This organism is estimated to be 2400 years old ... If this colony is considered a single organism, then it is the largest known organism in the world by area, and rivals the aspen grove "Pando" as the ... It is not known, however, whether it is a single organism with all parts of the mycelium connected ...
Schinderhannes Bartelsi - Significance
... The organism allows the classification of early arthropods to be resolved, to some degree ... The organism is classified basally to the true arthropods, but is closer to that group than Anomalocaris ... The organism's discovery was most significant because of the huge range extension of the anomalocaridids it caused the group was only previously known from lagerstatte of the lower ...
Adaptive Behavior (ecology) - Nonheritable Adaptive Behavior
... This role is commonly known as an ecological niche, and is simply how an organism lives in an environment in relation to others ... Over successive generations, the organism must adapt to their surrounding conditions in order to develop their niche ... An organism’s niche will evolve as changes in the external environment occur ...
... a biological interaction between two or more organisms that is detrimental to at least one of them or an antagonistic association between an organism and the metabolic substances produced by another ... The general relationship between an antibiotic and an infectious organism is one of antibiosis ... This word refers to an association of two organisms in which one is harmed or killed by the other ...

More definitions of "organism":

  • (noun): A system considered analogous in structure or function to a living body.
    Example: "The social organism"

Famous quotes containing the word organism:

    All progress is based upon a universal innate desire on the part of every organism to live beyond its income.
    Samuel Butler (1835–1902)

    The problems of the world, AIDS, cancer, nuclear war, pollution, are, finally, no more solvable than the problem of a tree which has borne fruit: the apples are overripe and they are falling—what can be done?... Nothing can be done, and nothing needs to be done. Something is being done—the organism is preparing to rest.
    David Mamet (b. 1947)

    fundamentally an organism has conscious mental states if and only if there is something that it is like to be that organism—something it is like for the organism.
    Thomas Nagel (b. 1938)