Dictionary » O » Organism



noun, plural: organisms

(Science: Biology)

An individual living thing that can react to stimuli, reproduce, grow, and maintain homeostasis. It can be a virus, bacterium, protist, fungus, plant or an animal.


Word origin: Greek organon = instrument.
Related forms: organismic (adjective), organismal (adjective), organismically (adverb).
Synonym: living thing, living being, individual.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Chicken or egg formed first

... prokaryotes. Up to invertebrate has egg laying capability. If we considering the question egg or chicken formed first, we can change it into organism or their reproductive structure (egg) formed first, if we dig the phylogeny of chicken we end up in prokaryotes which is an organism with no ...

See entire post
by josem
Thu Jul 17, 2014 7:14 pm
Forum: Evolution
Topic: Chicken or egg formed first
Replies: 3
Views: 454

Microevolution verus Macroevolution

... macro evolution. Surely any life form large enough to contain genes would evolve in exactly the same way? The genes don't really care how big an organism is going to grow. Their job is simply to provide the blue print for the morphology of the animal. Look at a great Dane and a chihuahua. And ...

See entire post
by animartco
Sun Jul 06, 2014 3:17 pm
Forum: Evolution
Topic: Microevolution verus Macroevolution
Replies: 16
Views: 21020

Cannibalistic fishes in lake inside cave

... population has to age and many die before there is room for more fry to grow. Either the fish themselves would eat the dead fish, or some other organism in the cave would, which would probably in turn be eaten by the fish. If there is nothing in the cave capable of ingesting dead fish then the ...

See entire post
by animartco
Tue May 27, 2014 1:37 pm
Forum: Zoology Discussion
Topic: Cannibalistic fishes in lake inside cave
Replies: 2
Views: 821

Re: holographic origin of life

Further proposed experimental testing: A If a living organism is a sum of automaton chemical reactions, then the components of food intake are the first substrates and the excreted products are the last elements. By changing the food and also the pace ...

See entire post
by minasole
Wed Apr 30, 2014 6:26 pm
Forum: Evolution
Topic: holographic origin of life
Replies: 13
Views: 17095

Evolutionary psychology

... aspects of "instinct" would be helpful to some people in better understanding emotion. Instinct is "an inherited tendency of an organism to behave in a certain way, usually in reaction to its environment and for the purpose of fulfilling a specific need..." American Heritage ...

See entire post
by 1300
Mon Apr 28, 2014 12:50 am
Forum: Evolution
Topic: Evolutionary psychology
Replies: 0
Views: 609
View all matching forum results

This page was last modified 12:06, 17 June 2008. This page has been accessed 319,398 times. 
What links here | Related changes | Permanent link